Aquarium Test Kits and Water Parameters

There are many water parameters that an aquarist might want to keep track of.  An aquarium test kit is available for virtually all of them.  There are several makers of accurate and useful aquarium test kits.  Personally, I have always been partial to the API brand of aquarium test kits but they do not make tests for numerous trace elements which can be of use when keeping a reef aquarium and some freshwater aquariums.  In my experience, they are generally all useful and accurate when used properly although occasionally one might come across a faulty or expired kit.  Each aquarist will find their own preference over time.

Master aquarium test kits include numerous tests that will be adequate for most aquarists.  Other combination kits are available specifically for marine and reef aquariums as well.  However, other tests are available for specific issues and serious reef aquarists might keep many tests on hand.  These include tests for elements like Oxygen which fish need to live, Copper tests to make sure the copper in a tank is at the proper therapeutic level or has been eliminated so invertebrates can be introduced, and the elements Calcium or Magnesium which are important in a reef tank.

Other aquarium test kits measure pH and hardness which are very important in both freshwater and saltwater aquariums.  A Phosphate aquarium test kit is very useful along with Nitrate tests in combating algae.  Aquarium test strips are a great way to check your water chemistry at a glance although more accurate aquarium test kits are advisable for most aquarists as they are far more accurate should a problem arise. Lastly, although they are not actually an aquarium test kit, I will also include several digital meters and hydrometers as they do measure aquarium water parameters.

There are many tests available, scroll below and click on the aquarium test kits that you are most interested in.

Master/Combo Aquarium Test Kits

Aquarium Test Strips

Nitrate/Nitrite Aquarium Test Kits

Ammonia Aquarium Test Kits

Phosphate Aquarium Test Kits

Copper Aquarium Test Kits

Carbonate, Hardness, Alkalinity Aquarium Test Kits

pH Aquarium Test Kits

Oxygen Aquarium Test Kits

Calcium Aquarium Test Kits

Iron Aquarium Test Kits

Magnesium, Iodine, Silicate, Strontium, and Potassium Aquarium Test Kits

Testing Meters- TDS, ORP, and Salinity

Master/Combo Aquarium Test Kits

API Master Saltwater Aquarium Test Kit
API Master Saltwater Aquarium Test Kit

API Master Saltwater Aquarium Test Kit

A complete aquarium test kit for saltwater & reef aquariums. Tests include: high range pH, ammonia, nitrite, nitrate, 4 test tubes, tray & rack.

Also will test water 4 ways to protect marine fish from dangerous water conditions. Over 550 tests.  Kit includes laminated results color cards, 4 test tubes and holding tray.

API Master Freshwater Aquarium Test Kit
API Master Freshwater Aquarium Test Kit

API Master Freshwater Aquarium Test Kit

API Master Freshwater Aquarium Test Kit is a complete kit for testing aquarium water. These tests water different ways to protect tropical fish from dangerous water conditions. Tests include: freshwater (low range) pH, ammonia, nitrite, high range pH, and nitrate, 4 test tubes, tray.

 

API Master Reef Aquarium Test Kit
API Master Reef Aquarium Test Kit

API Master Reef Aquarium Test Kit

API Master Reef Aquarium Test Kit measures the most important aquarium levels in a Reef Aquarium. 4 different tests calibrated specifically for Reef aquariums are designed to protect reef-dwellers from dangerous water conditions. Tests include: Calcium, Carbonate Hardness (KH), Phosphate & Nitrate, 4 test tubes, tray.

Nutrafin Master Aquarium Test Kit
Nutrafin Master Aquarium Test Kit, Contains 10 Test Parameters

Nutrafin Master Aquarium Test Kit, Contains 10 Test Parameters

  • Master Aquarium test kit; Ensures your fish are living a proper environment
  • Includes all Hagen aquarium test kits including ammonia, pH, calcium, phosphate, iron, nitrite, nitrate, KH and GH
  • Easy-to-read color charts are included
  • For fresh and saltwater aquariums; Full instructions for each test
Seachem MultiTest Marine Basic Aquarium Test Kit
Seachem MultiTest Marine Basic Aquarium Test Kit

Seachem MultiTest Marine Basic Aquarium Test Kit

  • 75 test
  • For saltwater use only
  • Unique indicator
  • Four tests in one
  • This kit combines the Marine pH & Alkalinity, Ammonia and Nitrite & Nitrate kits into one kit. MultiTest™ Marine Basic performs over 75 tests and contains a reference sample for validation.

 

 

Red Sea Fish Pharm Marine Care Aquarium Test Kit
Red Sea Marine Care Aquarium Test Kit

Red Sea Marine Care Aquarium Test Kit

  • Marine care aquarium test kit includes all of the main kits you need to run a healthy marine aquarium.
  • Allowing you to easily monitor the nitrate, nitrite, ammonia, pH and alkalinity levels.
  • The easy-to-use tests come with simple instructions and color charts.
  • 100 Ammonia test with accuracy of 0.02 ppm, 100 and 60 nitrate test with accuracy of 2 ppm and 0.05 ppm.
  • 100 pH test with accuracy of 0.2 ppm, 55 alkalinity test with accuracy of 1 dKH/0.36 meq/L.
Red Sea Algae Control Multi Salt Water Aquarium Test Kit
Red Sea Algae Control Multi Salt Water Aquarium Test Kit

Red Sea Algae Control Multi Salt Water Aquarium Test Kit

  • Algae control aquarium test kit includes high accuracy colorimetric comparator tests for the exceptionally high accuracy measurement of nitrate and phosphate.
  • The nitrate and phosphate tests are essential for the accurate dosing of NO3: PO4-X biological nitrate and phosphate reducer.
  • Kit also includes a durable, chemical resistant plastic case and analytical grade glass vials.
  • Multi test kit employs a comparator that eliminates fumbling or awkward handling of test vials also difficult to match color charts or color chips.
  • Ease-of-use rewards new and experienced reef hobbyists with fast and accurate results.
Salifert Alkalinity, Calcium, Magnesium Combo Aquarium Test Kit
Salifert Alkalinity, Calcium, Magnesium Combo Aquarium Test Kit

Salifert Alkalinity, Calcium, Magnesium Combo Aquarium Test Kit

  • Alkalinity and calcium are needed to form the skeletal material of corals.
  • Alkalinity and calcium are not the only substance needed to form the skeletal material of corals.
  • Maintaining a correct magnesium concentration is very important and is indirectly responsible for coral growth. Magnesium is depleted by algae growth and also by the use of excessive kalkwasser.
  • Magnesium is present in natural sea water in a fairly high concentration (1350 – 1500 mg/L) and is a Magnesium also helps to maintain the correct combination of calcium concentration and alkalinity.
  • The Salifert Combo Aquarium test kit is sensitive enough to detect small changes in levels of alkalinity, calcium and magnesium. The aquarium test kit is easy to use and accurate.
Seachem MultiTest Marine Special Aquarium Test Kit
Seachem MultiTest Marine Special Aquarium Test Kit

Seachem MultiTest Marine Special Aquarium Test Kit

  • 75 tests
  • For saltwater use only
  • Unique indicator
  • Three tests in one
  • This kit combines the Phosphate, Silicate, and Iodine/Iodide kits into one kit. MultiTest™ Reef Special performs over 75 tests and contains a reference sample for validation.

 

 

Red Sea Saltwater Reef Color Pro Multi Aquarium Test Kit
Red Sea Saltwater Reef Color Pro Multi Aquarium Test Kit

Red Sea Saltwater Reef Color Pro Multi Aquarium Test Kit

  • Reef colors pro aquarium test kit includes advanced tests for the high resolution measurement of iodine, potassium and iron.
  • All of these elements are associated with many biological functions, one of which being coral pigmentation.
  • This aquarium test kit enables accurate dosing of 3 of the reef colors supplements range
  • Also, this kit includes 50-iodine pro tests with 0.01 ppm, 40-potassium pro tests with +/-12 ppm and 50-iron pro tests with 0.05 ppm

Aquarium Test Strips

API AMMONIA TEST STRIPS Freshwater and Saltwater Aquarium Water Test Strips 25-Test Box

API AMMONIA TEST STRIPS Freshwater and Saltwater Aquarium Water Test Strips 25-Test Box

  • Contains one (1) API AMMONIA TEST STRIPS Freshwater and Saltwater Aquarium Water Test Strips 25-Test Box
  • Monitors water quality and prevents invisible water problems that can be harmful to fish
  • Dip test strips into aquarium water and check colors for fast and accurate results
  • Monitors water quality and prevents invisible water problems that can be harmful to fish
  • Dose several times a week when starting a new aquarium then weekly or when problem arise
JNW Direct 7 in 1 Aquarium Test Strips, Best Kit for Saltwater & Freshwater Aquariums

JNW Direct 7 in 1 Aquarium Test Strips, Best Kit for Saltwater & Freshwater Aquariums

  • THE ULTIMATE AT HOME TESTING KIT for your aquarium. Tests for 7 parameters: total hardness, free chlorine, nitrite, nitrate, pH, total alkalinity & KH / carbonate
  • EXTREMELY EASY TO USE aquarium test kit, Instant reliable results with simple and clear instructions. Simply dip and compare with large color chart on bottle. No more mailing samples off to an expensive lab and waiting weeks or even months for results
  • AMAZON BUYERS WORLDWIDE TRUST OUR BRAND to produce only premium products. That is why we at JNW Direct offer a lifetime money back guarantee on all our products, we are that confident you will love this kit!
API 5-IN-1 TEST STRIPS Freshwater and Saltwater Aquarium Test Strips
API 5-IN-1 TEST STRIPS Freshwater and Saltwater Aquarium Test Strips

API 5-IN-1 TEST STRIPS Freshwater and Saltwater Aquarium Test Strips

  • Contains one (1) API 5-IN-1 TEST STRIPS Freshwater and Saltwater Aquarium Test Strips 25-Count Box
  • Monitors levels of pH, nitrite, nitrate carbonate and general water hardness in freshwater and saltwater aquariums
  • Dip test strips into aquarium water and check colors for fast and accurate results
  • Helps prevent invisible water problems that can be harmful to fish and cause fish loss
  • Use for weekly monitoring and when water or fish problems appear
API pH TEST STRIPS Freshwater and Saltwater Aquarium Water test strips 25-Count Box

API pH TEST STRIPS Freshwater and Saltwater Aquarium Water test strips 25-Count Box

  • Contains one (1) API pH TEST STRIPS Freshwater and Saltwater Aquarium Water test strips 25-Count Box
  • Monitors water quality and prevents pH problems that can be harmful to fish
  • Dip test strips into aquarium water and check colors for fast and accurate results
  • Helps eliminate fish stress caused by incorrect pH levels in freshwater and saltwater aquariums
  • Use for weekly monitoring and when water or fish problems appear
  • Tests wide range of pH levels
  • Desiccant lined tube provides maximum moisture protection
  • Includes instruction booklet on how to correct unsafe water conditions

Nitrate/Nitrite Aquarium Test Kits

Seachem MultiTest Nitrite and Nitrate Aquarium Test Kit
Seachem MultiTest Nitrite and Nitrate Aquarium Test Kit

Seachem MultiTest Nitrite and Nitrate Aquarium Test Kit

  • 75 tests
  • Fresh or saltwater use
  • Unique indicator
  • This kit measures nitrite to less than 0.1 mg/L and nitrate to less than 0.2 mg/L in marine or freshwater. MultiTest™ Nitrite. Nitrate performs over 75 tests and contains a reference sample for validation.

 

 

Red Sea Fish Marine Care Program Nitrate/Nitrite Aquarium Test Kit, 50/100 Tests
Red Sea Fish Marine Care Program Nitrate/Nitrite Aquarium Test Kit, 50/100 Tests

Red Sea Fish Marine Care Program Nitrate/Nitrite Aquarium Test Kit, 50/100 Tests

  • Marine care program nitrate/nitrite combi-test kit
  • Provides 100 nitrate plus 50 nitrite advanced colorimetric tests for marine aquariums
  • Its accuracy of 0.05 ppm or 2 ppm
  • Performs 50/100 tests
  • It range is 0-1 ppm or 0-250 ppm

 

 

 

API NITRATE 90-Test Freshwater and Saltwater Aquarium Test Kit
API NITRATE 90-Test Freshwater and Saltwater Aquarium Test Kit

API NITRATE 90-Test Freshwater and Saltwater Aquarium Test Kit

  • Contains one (1) API NITRATE 90-Test Freshwater and Saltwater Aquarium Test Kit, including 2 bottles of testing solution, 2 color cards and 1 glass test tube with cap
  • Detects high nitrate levels from 0-160 ppm
  • Helps monitor and adjust pH and prevent invisible water problems that can be harmful to fish
  • Prevents algae growth that can be damaging to fish health
  • Use for weekly monitoring and when water or fish problems appear
Salifert Nitrite Aquarium Test Kit - 60 Tests
Salifert Nitrite Aquarium Test Kit – 60 Tests

Salifert Nitrite Aquarium Test Kit – 60 Tests

  • Because of its unique formulation, the Salifert Aquarium test kit does not suffer from amine interference.

Salifert aquarium test kits are the epitome of accuracy and precision. Their wide range of available tests have all been designed to detect the smallest traces of certain elements, without interference from other chemicals within the water. Simply put, these are the best aquarium test kits you can buy- hands down. The sharp, contrasting color changes make results easy to read so there’s no second guessing. Trust your aquarium to Salifert.Accurately measure the tiniest amount of nitrite without interference from amines. For saltwater or freshwater.

Salifert Nitrate (No3) Aquarium Test Kit
Salifert Nitrate (No3) Aquarium Test Kit

Salifert Nitrate (No3) Aquarium Test Kit

Nitrate Profi-Test When there are insufficient areas of a tank which are deprived of oxygen (anaerobic zones) or denitrification is not taking place properly, nitrate will build up. This can also happen in an aquarium where the biological loading on the system is causing an imbalance e.g. if there is excessive livestock for the aquarium volume or over feeding is occurring. Build up of nitrate can result in unwanted algae growth and the slowing down of coral growth. The nitrate concentration in a reef aquarium should be lower than 1 mg/L, although fish only aquariums would usually have a higher concentration. Just as with nitrite, many nitrate aquarium test kits are prone to amine interference which can make the levels of nitrate appear much lower than they actually are.

Red Sea Saltwater Nitrate Pro Aquarium Test Kit, 100 Tests
Red Sea Saltwater Nitrate Pro Aquarium Test Kit, 100 Tests

Red Sea Saltwater Nitrate Pro Aquarium Test Kit, 100 Tests

  • This product is easy to use
  • This product adds a great Value
  • Manufactured in Israel

Ammonia Aquarium Test Kits

API Ammonia Test Kit for Aquarium

API Ammonia Test Kit for Aquarium

Ammonia tests are critical in a new tank to prevent dead fish.  

  • Contains one (1) API AMMONIA 130-Test Freshwater and Saltwater Aquarium Water Test Kit, including 2 bottles of testing solution, 2 color cards and 1 glass test tube with cap
  • Monitors water quality and prevents invisible water problems that can be harmful to fish
  • Monitors water quality and prevents invisible water problems that can be harmful to fish
  • Works instantly to make aquarium water safe for fish
  • Dose several times a week when starting a new aquarium then weekly or when problem arise
Seachem MultiTest Ammonia Aquarium Test Kit
Seachem MultiTest Ammonia Aquarium Test Kit

Seachem MultiTest Ammonia Aquarium Test Kit

  • 75 tests
  • Fresh or saltwater use
  • Unique indicator
  • Measures free and total ammonia
  • This kit measures total (NH3 and NH4+) and free ammonia (NH3 only) down to less than 0.05 mg/L and is virtually interference free in marine and fresh water. Free ammonia is the toxic form of ammonia (vs. ionized Ammonia NH4+ which is non-toxic) and thus it is much more important to keep an eye on the level of free ammonia in your system.

 

Salifert Ammonia Aquarium Test Kit
Salifert Ammonia Aquarium Test Kit

Salifert Ammonia Aquarium Test Kit

  • Ammonia and ammonium should be rapidly converted by aerobic nitrification into nitrite and then nitr
  • The Salifert Ammonia Aquarium test kit measures the total amount of ammonia and ammonium quickly and accurate
  • Sufficient for up to 50 tests and can detect 0.5 ppm of total ammonia easily.

Ammonia and ammonium should be rapidly converted by aerobic nitrification into nitrite and then nitrate and finally into nitrogen gas. If this does not happen then either the aquarium is not fully matured or there is a problem with the tank`s biological system, which can be caused by an excessive biological loading being placed on the system. The Salifert Ammonia Aquarium test kit measures the total amount of ammonia and ammonium quickly and accurately. Sufficient for up to 50 tests and can detect 0.5 ppm of total ammonia easily.

Phosphate Aquarium Test Kits

API Phosphate Aquarium Test Kit For Freshwater And Saltwater
API Phosphate Aquarium Test Kit For Freshwater And Saltwater

API Phosphate Aquarium Test Kit For Freshwater And Saltwater

  • Contains one (1) API PHOSPHATE AQUARIUM TEST KIT 150-Test Freshwater and Saltwater Aquarium Test Kit, including 2 bottles of testing solution, 2 color cards and 1 glass test tube with cap
  • Reads phosphate levels between 0-10 ppm
  • Helps monitor and adjust pH and prevent invisible water problems that can be harmful to fish and corals
  • Prevents excess and unsightly algae which can cause fish stress and inhibit the growth of hard corals
  • Use for weekly monitoring and when water or fish problems appear
Salifert Phosphate Aquarium Test Kit
Salifert Phosphate Aquarium Test Kit

Salifert Phosphate Aquarium Test Kit

  • The phosphate aquarium test kit will detect lower concentrations of phosphates
  • Salifert’s phosphate test is highly reliable and accurate
  • The phosphate aquarium test kit includes a professional colorimetric comparator
  • Salifert aquarium test kits are the epitome of accuracy and precision. Their wide range of available tests have all been designed to detect the smallest traces of certain elements, without interference from other chemicals within the water. Simply put, these are the best aquarium test kits you can buy- hands down. The sharp, contrasting color changes make results easy to read so there’s no second guessing. Trust your aquarium to Salifert. Test your water for even the smallest amounts of phosphate with this aquarium test kit. See if phosphate is the culprit behind those algae problems. For freshwater and saltwater.
Red Sea MCP Phosphate (PO4) Aquarium Test Kit
Red Sea MCP Phosphate (PO4) Aquarium Test Kit

Red Sea MCP Phosphate (PO4) Aquarium Test Kit

  • Red Sea Phosphate Aquarium test kit Includes 100 tests.
  • Measurement of Phosphate in your aquarium to an accuracy of 0.1ppm PO4.
  • For Saltwater/Reef/Marine Aquariums Only.
  • Red Sea’s colorimetric Phosphate aquarium test kit provides a quick and reliable measurement of Phosphate in your aquarium to an accuracy of 0.1ppm PO4. This aquarium test kit, in conjunction with Red Sea’s Nitrite/Nitrate aquarium test kit, enables dosing of NO3: PO4- X (Biological Nitrate and Phosphate reducer) Red Sea Phosphate Aquarium test kit Includes 100 tests.
Seachem MultiTest Phosphate Aquarium Test Kit
Seachem MultiTest Phosphate Aquarium Test Kit

Seachem MultiTest Phosphate Aquarium Test Kit

  • 75 tests
  • Fresh or saltwater use
  • Unique indicator
  • This kit measures inorganic phosphate to less than 0.05 mg/L, producing a unique easy to read yellow-green-blue color range in marine and freshwater. MultiTest™ Phosphate performs over 75 tests and contains a reference sample for validation. Range: 0–3.0 mg/L. Precision: 0.001–0.1 mg/L.

 

 

Sera phosphate-Test (PO4) 15 ml, 0.5 fl.oz. Aquarium Test Kits
Sera phosphate-Test (PO4) 15 ml, 0.5 fl.oz. Aquarium Test Kits

Sera phosphate-Test (PO4) 15 ml, 0.5 fl.oz. Aquarium Test Kits

  • For freshwater and marine aquariums as well as ponds
  • Very accurate
  • Easy to read
  • Both fish waste and feeding are possible causes for phosphate introduction into the water. A part is taken up as a nutrient by plants, an excess, however, provides nutrition for unwanted algae. The sera PO4-Test quickly and easily provides an overview of current phosphate levels.

Copper Aquarium Test Kits

API COPPER KIT 90-Tests Aquarium Test Kit
API COPPER KIT 90-Tests Aquarium Test Kit

API COPPER KIT 90-Tests Aquarium Test Kit

  • Contains 90 tests
  • Measures both free and chelated copper
  • Contains color chart, clear instructions and glass tube(s)
  • Test reads 0 to 4 mg/L or parts per million (ppm) of copper. Helps to maintain a healthy aquarium or pond for fish by ensuring that copper (a common treatment for many parisitic infections) levels are within the healthy range.
Seachem MultiTest Copper Aquarium Test Kit
Seachem MultiTest Copper Aquarium Test Kit

Seachem MultiTest Copper Aquarium Test Kit

  • 75 test
  • Fresh or saltwater use
  • Unique indicator
  • This kit measures all types of copper to less than 0.01 mg/L in marine or freshwater. It uses a highly sensitive catalysis based procedure.  This copper test kit performs over 75 tests and contains a reference sample for validation. Precision: 0.025mg/L

 

 

Sera copper-Test (Cu) 15 ml, 0.5 fl.oz. Aquarium Test Kits
Sera copper-Test (Cu) 15 ml, 0.5 fl.oz. Aquarium Test Kits

Sera copper-Test (Cu) 15 ml, 0.5 fl.oz. Aquarium Test Kits

  • For freshwater and marine aquariums as well as ponds
  • Very accurate
  • Easy to read
  • Copper (Cu) is very toxic especially for invertebrates such as shrimps and crustaceans, but fish also react very sensitively to elevated copper levels. There are many possible causes for copper enrichment, including medical or algae combating treatments. The sera Cu-Test allows checking quickly whether fish or invertebrates are safe. sera aqua tan provides help in case of elevated copper levels. Sufficient for approx. 50 measurements.

Carbonate, Hardness, Alkalinity Aquarium Test Kits

Salifert Carbonate Hardness & Alkalinity (Kh/Alk) Aquarium Test Kit, 100-200 Tests
Salifert Carbonate Hardness & Alkalinity (Kh/Alk) Aquarium Test Kit, 100-200 Tests

Salifert Carbonate Hardness & Alkalinity (Kh/Alk) Aquarium Test Kit, 100-200 Tests

  • The alkalinity aquarium test kit safely and effectively test water for alkalinity
  • The Salifert alkalinity test can perform up to 200 tests
  • The alkalinity tests detects any small changes in tank
  • Salifert aquarium water aquarium test kits are the epitome of accuracy and precision. Their wide range of available tests have all been designed to detect the smallest traces of certain elements, without interference from other chemicals within the water. Simply put, these are the best aquarium test kits you can buy- hands down. The sharp, contrasting color changes make results easy to read so there’s no second guessing. Trust your aquarium to Salifert. Detects small changes in carbonate hardness which can affect pH and the growth of both fish and coral. Freshwater and saltwater.
API Carbonate Hardness (KH) Aquarium Test Kit
API Carbonate Hardness (KH) Aquarium Test Kit

API Carbonate Hardness (KH) Aquarium Test Kit

  • Contains one (1) API CARBONATE HARDNESS AQUARIUM TEST KIT Aquarium Water Aquarium test kit, including 1 bottle of testing solution, 1 color card and 1 glass test tube with cap
  • Helps monitor water quality and prevent invisible water problems that can be harmful to fish and plants and cause fish loss
  • Accurately measures carbonate hardness in freshwater and saltwater aquariums
  • KH (Carbonate Hardness) stabilizes aquarium pH.
  • Use weekly for monitoring and when water or fish problems appear
API GH & KH Freshwater Aquarium Test Kit
API GH & KH Freshwater Aquarium Test Kit

API GH & KH Freshwater Aquarium Test Kit

  • Contains one (1) API GH & KH AQUARIUM TEST KIT Freshwater Aquarium test kit, including 2 bottles of testing solution, 1 color card and 2 glass test tubes with cap
  • Helps monitor water quality and prevent invisible water problems that can be harmful to fish and plants and cause fish loss
  • Accurately measures GH & KH in freshwater aquariums
  • Water hardness is a measure of the dissolved mineral content of water and should match fish natural habitat to prevent fish stress and keep them healthy
  • Use for weekly monitoring and when water or fish problems appear
Red Sea Saltwater KH/Alkalinity Pro Aquarium Test Kit, 75 Tests
Red Sea Saltwater KH/Alkalinity Pro Aquarium Test Kit, 75 Tests

Red Sea Saltwater KH/Alkalinity Pro Aquarium Test Kit, 75 Tests

  • Saltwater Alkalinity Pro Aquarium test kit
  • Includes An Accurate Titration Test For Kh Monitoring These Essential Parameters In All Marine Aquariums
  • It accuracy of 1 dKH / 0.36 meq/L
  • Alkalinity Pro Is A High Accuracy (+/- 2.5Ppm) Titration Test Kit (75 Tests)
  • Includes Professional Titrate

pH Aquarium Test Kits

API High Range pH Aquarium Test Kit
API High Range pH Aquarium Test Kit

API High Range pH Aquarium Test Kit

  • Contains one (1) API HIGH RANGE PH TEST KIT 160-Test Freshwater and Saltwater Aquarium Water Test Kit, including 1 bottle of testing solution, 1 color card and 1 glass test tube with cap
  • Helps monitor pH and prevent invisible water problems that can be harmful to fish and cause fish loss
  • Accurately reads pH range 7.4 – 8.8, ideal for Goldfish, Marine, and African Cichlids.
  • Because different geographies have different tap water conditions, and different fish need different pH levels to be healthy, API helps measure pH levels & detect pH fluctuation caused by fish waste, uneaten food and addition of tap water.
  • Use for weekly monitoring and when water or fish problems appear
API PH 250-Tests Freshwater pH Aquarium Test Kit
API PH 250-Tests Freshwater pH Aquarium Test Kit

API PH 250-Tests Freshwater pH Aquarium Test Kit

  • Contains one (1) API PH AQUARIUM TEST KIT 250-Test Freshwater Aquarium Water pH Aquarium test kit, including 1 bottle of testing solution, 1 color card and 1 glass test tube with cap
  • Helps monitor and adjust pH and prevent invisible water problems that can be harmful to fish
  • Accurately reads pH 6.0 – 7.6 and helps avoid fish loss
  • Because different geographies have different tap water conditions, and different fish need different pH levels to be healthy, API helps measure pH levels & detect pH fluctuation caused by fish waste, uneaten food and addition of tap water.
  • Use for weekly monitoring and when water or fish problems appear
Salifert pH Aquarium Test Kit
Salifert pH Aquarium Test Kit

Salifert pH Aquarium Test Kit

  • The pH aquarium test kit provides accurate pH fluctuations
  • Salifert pH aquarium test kit can perform up to 50 tests
  • The pH test monitors the pH and provides an effective alkalinity
  • Salifert aquarium test kits are the epitome of accuracy and precision. Their wide range of available tests have all been designed to detect the smallest traces of certain elements, without interference from other chemicals within the water. Simply put, these are the best aquarium test kits you can buy- hands down. The sharp, contrasting color changes make results easy to read so there’s no second guessing. Trust your aquarium to Salifert. Easy to read color change and fast results allows you to effortlessly test your marine water for the correct pH.
API POND WIDE RANGE pH TEST KIT
API POND WIDE RANGE pH TEST KIT

API POND WIDE RANGE pH TEST KIT

  • Contains one (1) API PONDCARE WIDE RANGE pH AQUARIUM TEST KIT 160-Test Pond Water Test Kit, including 1 bottle of testing solution, 1 color card and 1 glass test tube with cap
  • Helps monitor and adjust pH and prevent invisible water problems that can be harmful to fish
  • Accurately reads pH levels 5.0 to 9.0.
  • Because different geographies have different tap water conditions, and different fish need different pH levels to be healthy, API helps measure pH levels & detect pH fluctuation caused by fish waste, uneaten food and addition of tap water.
  • Use for weekly monitoring and when water or fish problems appear

Oxygen Aquarium Test Kits

Salifert Dissolved Oxygen Test Kit
Salifert Dissolved Oxygen Aquarium Test Kit

Salifert Dissolved Oxygen Aquarium Test Kit

  • Corals and marine fish require very high levels of oxygen concentration because of the low solubility
  • Prevent tank crashes and dead fish by monitoring Oxygen
  • The Salifert Oxygen Profi-Test is extremely fast, measuring oxygen levels in just a few minutes
  • Sufficient for 40 tests.
  • Can be used for marine, fresh and garden pond water

Salifert Oxygen Profi-Test Corals and marine fish require very high levels of oxygen concentration because of the low solubility of oxygen in salt water so it is very important to regularly test the level of oxygen present. Can be used for marine, fresh and garden pond.

Sera oxygen-Test (O2) 15 ml, 0.5 fl.oz. Aquarium Test Kits
Sera oxygen-Test (O2) 15 ml, 0.5 fl.oz. Aquarium Test Kits

Sera oxygen-Test (O2) 15 ml, 0.5 fl.oz. Aquarium Test Kits

  • For freshwater and marine aquariums as well as ponds
  • Very accurate
  • Easy to read
  • Quick breathing at the water surface is an unmistakable sign for an oxygen deficiency. Unfortunately, it may then already be too late for acting appropriately. The sera O2-Test monitors the actual oxygen level in the water within minutes and allows for acting in time. sera O2 plus provides quick oxygen supply. Sufficient for approx. 60 measurements.

Calcium Aquarium Test Kits

API CALCIUM 90-Tests Aquarium Test Kit
API CALCIUM 90-Tests Aquarium Test Kit

API CALCIUM 90-Tests Aquarium Test Kit

  • Liquid test for saltwater
  • Accurately measures calcium
  • Contains color chart, clear instructions and glass tube(s)
  • This kit allows for easy and accurate measuring of calcium levels to help in maintaining a healthy aquarium.

 

Salifert Calcium (Ca) Aquarium Test Kit - 50 to 100 Tests
Salifert Calcium (Ca) Aquarium Test Kit – 50 to 100 Tests

Salifert Calcium (Ca) Aquarium Test Kit – 50 to 100 Tests

  • The calcium aquarium test kit provides for accurate calcium levels
  • This Salifert calcium aquarium test kit can perform up to 100 tests
  • Salifert aquarium test kits are the epitome of accuracy and precision. Their wide range of available tests have all been designed to detect the smallest traces of certain elements, without interference from other chemicals within the water. Simply put, these are the best aquarium test kits you can buy- hands down. Also, the sharp, contrasting color changes make results easy to read so there’s no second guessing. Trust your aquarium to Salifert. This calcium test will detect the smallest fluctuations of calcium in saltwater reef aquariums so you can be sure your corals and other invertebrates are receiving an adequate amount for their general health and growth.
Red Sea Saltwater Calcium Pro Aquarium Test Kit
Red Sea Saltwater Calcium Pro Aquarium Test Kit

Red Sea Saltwater Calcium Pro Aquarium Test Kit

  • This product is easy to use
  • This product adds a great Value
  •  Manufactured in Israel

This product is easy to use. This product adds a great value. Manufactured in Israel. This product is designed for pets and there use.

Iron Aquarium Test Kits

Seachem MultiTest Iron Aquarium Test Kit
Seachem MultiTest Iron Aquarium Test Kit

Seachem MultiTest Iron Aquarium Test Kit

  • 75 test
  • Fresh or saltwater use
  • Unique indicator
  • This kit measures iron in freshwater or marine water to less than 0.05 mg/L. Can also measure chelated iron. Iron performs over 75 tests and contains a reference sample for validation.  Precision: 0.05 mg/L.

 

 

Sera iron-Test (Fe) 15 ml, 0.5 fl.oz. Aquarium Test Kit
Sera iron-Test (Fe) 15 ml, 0.5 fl.oz. Aquarium Test Kit

Sera iron-Test (Fe) 15 ml, 0.5 fl.oz. Aquarium Test Kit

  • For freshwater and marine aquariums as well as ponds
  • Very accurate
  • Easy to read
  • Iron (Fe) is an important component of plant nutrition. In case the plants have fading leaves this may be due to lacking iron. The sera Fe-Test provides quick information about possible deficiencies. Detection of chelatized (stabilized) iron is possible. Sufficient for approx. 75 measurements.

Magnesium, Iodine, Silicate, Strontium, and Potassium Aquarium Test Kits

Salifert Iodine Aquarium Test Kit - 40 Tests
Salifert Iodine Aquarium Test Kit – 40 Tests

Salifert Iodine Aquarium Test Kit – 40 Tests

  • Iodine is present in natural sea water in a very low concentration
  • An Iodine aquarium test kits should be capable of measuring all forms of naturally occurring iodine.
  • Unlike many other aquarium test kits, the Salifert Iodine Profi-Test is free from interference from other elements.

Salifert aquarium test kits are the epitome of accuracy and precision. Their wide range of available tests have all been designed to detect the smallest traces of certain elements, without interference from other chemicals within the water. Simply put, these are the best aquarium test kits you can buy- hands down. The sharp, contrasting color changes make results easy to read so there’s no second guessing. Trust your aquarium to Salifert. This test will accurately measure the form of iodine found in seawater, iodate. Saltwater test.

Salifert Potassium Reef Aquarium Test Kit
Salifert Potassium Reef Aquarium Test Kit

Salifert Potassium Reef Aquarium Test Kit

Salifert Potassium Reef Test Potassium concentration in natural seawater is approximately 400 ppm. Many aquarists have reported that a low potassium value reduces colors in corals. This can be corrected by increasing the potassium value to the normal natural concentration. Now you can accurately measure this value with the new Salifert Potassium Reef Aquarium test kits.

 

Salifert Magnesium (MG) Aquarium Test Kit
Salifert Magnesium (MG) Aquarium Test Kit

Salifert Magnesium (MG) Aquarium Test Kit

  • The magnesium aquarium test kit effectively tests and provides a balanced magnesium aquarium
  • This magnesium aquarium test kit can perform up to 50 tests
  • The test will measure accurate steps of color change in tank
  • Salifert Magnesium Profit-Test Magnesium is present in natural sea water in a fairly high concentration and is an essential element of chlorophyll which is necessary for photosynthesis. Without photosynthesis plants, algae and coral would not be able to survive. Magnesium also helps to maintain the correct combination of calcium concentration and alkalinity as it slows down the formation of calcium carbonate which can absorb many important trace elements within the aquarium. Maintaining a correct magnesium concentration is therefore very important and is indirectly responsible for fast coral and calcareous algae growth by making it possible to maintain correct calcium and alkalinity figures. Magnesium is depleted by algae growth and also by the use of excessive kalkwasser or by going far beyond natural calcium, alkalinity and pH values.
Red Sea Magnesium Pro Aquarium Test Kit
Red Sea Magnesium Pro Aquarium Test Kit

Red Sea Magnesium Pro Aquarium Test Kit

  • Magnesium pro aquarium test kit is an advanced titration test
  • Measuring the level of magnesium in your reef aquarium to an exceptionally high accuracy of 20 ppm
  • This aquarium test kit enables accurate dosing of reef foundation C supplement (magnesium) which is part of the complete reef care program
  • Also includes a durable, chemical resistant plastic case, analytical grade glass vials
  • A high precision titrate with materials for up to 100 tests
Seachem Reef Status Magnesium Aquarium Test Kit
Seachem Reef Status Magnesium Aquarium Test Kit

Seachem Reef Status Magnesium Aquarium Test Kit

  • 75 test
  • For saltwater use only
  • Unique indicator

This kit is capable of at least 75 tests for magnesium. It is designed specifically for seawater.  Natural seawater concentration for magnesium is approximately 1,300 mg/L.  If magnesium levels are found to be deficient, Seachem recommends the use of Reef Advantage Magnesium; (ammonia free! unlike competing liquid magnesium supplements).

Seachem MultiTest Iodine and Iodide Aquarium Test Kit
Seachem MultiTest Iodine and Iodide Aquarium Test Kit

Seachem MultiTest Iodine and Iodide Aquarium Test Kit

      • 75 test
      • Fresh or saltwater use
      • Unique indicator
      • This kit measures iodine or iodide to less than 0.005 mg/L. MultiTest & trade; Iodine/Iodide performs over 75 tests and contains a reference sample for validation.

 

 

 

Seachem MultiTest Silicate Aquarium Test Kit,75 Tests
Seachem MultiTest Silicate Aquarium Test Kit,75 Tests

Seachem MultiTest Silicate Aquarium Test Kit,75 Tests

      • 75 tests
      • Fresh or saltwater use
      • Unique indicator
      • This kit measures silicates to less than 0.5 mg/L in marine or freshwater. MultiTest™ Silicate performs over 75 tests and contains a reference sample for validation.

 

 

 

Salifert Reef Status Strontium Aquarium Test Kit
Salifert Reef Status Strontium Aquarium Test Kit

Salifert Reef Status Strontium Aquarium Test Kit

      • 50 test
      • For saltwater use only
      • Unique indicator
      • Easily test the strontium level in your tank. Trusted by discerning reefers for years, Salifert Aquarium Aquarium test kits feature some of the easiest to read results available to each testing method. The Salifert Strontium Aquarium test kit contains 25 tests

 

Testing Meters- TDS, ORP, pH, and Salinity

 

Digital pH Meter + FREE pH Solution Powder, High Accuracy pH 0-14 Tests Pool, Soil pH, Aquarium, pH Scale, pH Test Strips

Digital pH Meter + FREE pH Solution Powder, High Accuracy pH 0-14 Tests Pool, Soil pH, Aquarium, pH Scale, pH Test Strips

It is easy to use; Calibrate with included buffer solutions and get results within seconds; Large LCD screen easy to read.

Ideal for wide range of household and laboratory uses; Water, pools, spas, hydroponics, garden soil, food, wine and beer making and more.

Portable; Handheld digital pH Meter comes with convenient carrying case and tucks easily in pocket or handbag for pH testing on the go.

Full measurement range; Full pH 0-14 measurements and 0.05 pH range of error; Automatic temp compensation accounts for temp changes automatically.

Super convenient pH pen is mess free; Just turn on meter, dip in liquid and read display, no fuss, no muss.

GlowGeek Professional Quality TDS, EC & Temperature Meter, Water Quality Test Meter, 0-9990ppm. (For Freshwater and RO systems)

GlowGeek Professional Quality TDS, EC & Temperature Meter, Water Quality Test Meter, 0-9990ppm. (For Freshwater and RO systems)

      • TECHNICAL SPECS: TDS, EC and Temperature Meter. Accuracy: ± 2%. Range:0-9990ppm, 0-9990 µs/cm, 0.1-80.0°C, 32.0-176.0°F.
      • MULTIPURPOSE WATER TESTER: Use this mini device to test the water you are planning to use for hydroponics or to fill your aquarium. It can also be used as a TDS meter for coffee or a TDS meter for drinking water to ensure your H20 is clean and healthy!
      • PROFESSIONAL QUALITY: Made out of the the finest quality materials available, our ATC meter is much more durable than any other affordable TDS meter currently on the market.
      • EASY TO USE TDS METER: Each one of these TDS water meters is equipped with a digital display that makes it easy to read levels, know when it’s time to change the filter and adjust settings are needed.
      • COMPACT, PORTABLE SIZE: The small, slim size of our high range TDS meter allows you to take it with you to test water on the go.
Amzdeal Salinity Refractometer Aquarium & Seawater – Dual Scale (1.0 to 1.070 S.G.)

Amzdeal Salinity Refractometer Aquarium & Seawater – Dual Scale (1.0 to 1.070 S.G.)

      • Automatic Temperature Compensation- Hand-held ATC refractometer, can be used in the temperature 5-30 ℃ / 41-86℉
      • Dual Salinity Scale – Salt content 0 ~ 100 ‰ (0 ~ 10%) and Salt specific gravity 1.000 ~ 1.070sg.
      • Easy to Use – Using distilled water to calibrate and then you can measure the saltwater and get the result
      • Package Content – Come with all the accessories, including Dropper, Screwdriver, Cleaning Cloth, Storage Case and User Manual
American Marine Pinpoint ORP Monitor (for saltwater)

American Marine Pinpoint ORP Monitor (for saltwater)

The PinPoint ORP Monitor will measure the ORP (oxidation-reduction potential, or REDOX) of your system. It is popular with those who use ozone gas or potassium permanganate as an artificial oxidation agent in fresh or saltwater. Constant monitoring of the ORP is useful in keeping tabs on the overall health of a system, as a drop in ORP often precedes visual or other indications of trouble. Many serious marine enthusiasts who do not use ozone gas use this meter to judge the overall health of their reef systems. Also, this unit features a 1mV digital resolution and a platinum electrode.