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Test Kits

At AquaCave, we offer some of the best selection and best prices on aquarium test kits for you marine, reef, and freshwater aquarium. Aquarium Test Kits have a place in every aquarium application. They are necessary to keep your water chemistry in check. We have kits for testing just about every water parameter including pH, alkalinity, nitrates, nitrites, ammonia, organics, phosphates, magnesium, boron, iodine, oxygen, ozone and many more.

38 of 38 Items
  • Salifert Master Reef Testing Combo Kit Salifert Master Reef Testing Combo Kit Salifert Master Reef Testing Combo Kit Salifert Master Reef Testing Combo Kit Salifert Master Reef Testing Combo Kit

    Salifert

    Salifert Master Reef Testing Combo Kit

    Salifert Master Reef Testing Combo Kit  Six Salifert Professional Test Kits Includes Calcium, Nitrate, Phosphate, pH, Alkalinity & Magnesium Includes all the Core parameters of any Saltwater Aquarium/Marine Reef Tank   Salifert Nitrate...

    $132.43
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  • Red Sea MCP Test Kit Marine Care Master Red Sea MCP Test Kit Marine Care Master

    Red Sea

    Red Sea MCP Test Kit Marine Care Master

    Red Sea MCP Test Kit Marine Care Master.The Red Sea Marine Care Program Marine Care Test Kit includes easy to use tests for the accurate monitoring of all of the important parameters during the biological maturation of marine reef aquariums. Includes:...

    $79.99
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  • Triton N-DOC Organics Test Kit

    Triton

    Triton N-DOC Organics Test Kit

    Triton N-DOC Organics Test Kit Application:  Deliver insights into complex organic systems in seawater: Carbon and Nitrogen Use N/C/P ratio to manage sources of Carbon / Amino acid and control their influence on bacteria and corals in reef...

    $59.00
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  • API Reef Master Test Kit API Reef Master Test Kit

    API

    API Reef Master Test Kit

    API Master Reef Test KitTo maintain and grow healthy corals, the correct balance of calcium and carbonates is essential, as are low levels of phosphate and nitrate. This kit provides highly accurate testing for each of these critical parameters: ...

    $44.99
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  • API Freshwater Master Test Kit API Freshwater Master Test Kit

    API

    API Freshwater Master Test Kit

    API Master Freshwater Test Kit This kit tests tap water and aquarium water for five different parameters that affect the health of freshwater fish: pH, High Range pH, Ammonia, Nitrite and Nitrate.  Highly accuate and economical.  Unique,...

    $39.99
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  • API Saltwater Master Test Kit API Saltwater Master Test Kit

    API

    API Saltwater Master Test Kit

    API Master Saltwater Test Kit.A complete kit for testing marine aquarium water. Tests water four ways to protect marine fish and invertebrates from dangerous water conditions. Kit includes tests for: High Range pH, Ammonia, Nitrite, Nitrate, plus four...

    $39.99
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  • Red Sea KH/Alkalinity Pro Test Refill Red Sea KH/Alkalinity Pro Test Refill

    Red Sea

    Red Sea KH/Alkalinity Pro Test Refill

    Red Sea KH/Alkalinity Pro Test Refill Advanced titration test measuring the level of buffers in your reef aquarium, with exceptionally high accuracy of 0.05 meq/l (0.14 dKH) Red Sea’s KH\ALKALINITY PROReef Test Kit is an advanced titration test,...

    $28.99
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  • Red Sea Magnesium Pro Test Refill Red Sea Magnesium Pro Test Refill

    Red Sea

    Red Sea Magnesium Pro Test Refill

    Red Sea Magnesium Pro Test Refill Advanced titration test measuring the level of Magnesium in your reef aquarium, with exceptionally high accuracy of 20 ppm  Test Name Element Accuracy Range Test Type No. of test Magnesium...

    $28.99
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  • Salifert Magnesium Test Kit

    Salifert

    Salifert Magnesium Test Kit

    Salifert Magnesium Aquarium Test KitMagnesium is present in NSW in a fairly high concentration (1300 - 1400 mg/L). Magnesium is an essential part of chlorophyll, which is necessary for photosynthesis. Without photosynthesis plants, including algae...

    $21.49
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  • Salifert Phosphate Test Kit

    Salifert

    Salifert Phosphate Test Kit

    Salifert Phosphate Aquarium Test KitPhosphate has several negative effects if present in a too high concentration. First of all undesirable algae growth might result. Making an aquarium an unpleasant sight.Phosphate also blocks or retards the growth of...

    $21.49
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  • Salifert Calcium Test Kit

    Salifert

    Salifert Calcium Test Kit

    Salifert Calcium Test KitCalcium is a major constituent of calcareous algae, skeletal material of hard corals and the skeletal needles of soft/leather corals. Calcium also fulfills many biological functions.Quite often a too low calcium concentration...

    $20.49
    Add to Cart
  • Salifert Potassium Test Kit

    Salifert

    Salifert Potassium Test Kit

    Salifert Potassium Test Kit 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...

    $20.49
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  • Salifert Flat Worm Exit

    Salifert

    Salifert Flat Worm Exit

    Salifert Flat Worm Exit.Salifert Flatworm Exit is a safe solution to get rid of flatworms in your tank. It is perfectly harmless for the reef inhabitants, both fish and invertebrates, but definitely deadly for the flatworms. Flatworm body juice can...

    $18.49
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  • Salifert Nitrate Test Kit

    Salifert

    Salifert Nitrate Test Kit

    Salifert Nitrate Aquarium Test KitWhen an aquarium has insufficient regions deprived of oxygen (= anaerobic zones) or denitrification proceeds incompletely then nitrate will build-up.A too high nitrate concentration can result in unwanted algae-growth...

    $18.49
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  • Salifert KH/Alkalinity Test Kit

    Salifert

    Salifert KH/Alkalinity Test Kit

    Salifert KH/Alkalinity Test KitCalcium alone cannot form the skeletal material of corals and allow calcareous algae to grow. Some other substances are needed as well. A few other constituents are carbonate and bicarbonate. These two substances also...

    $17.49
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  • API Ammonia Test Kit for Fresh or Saltwater API Ammonia Test Kit for Fresh or Saltwater

    API

    API Ammonia Test Kit for Fresh or Saltwater

    API Test Kit Ammonia for Fresh or Saltwater.Ammonia, constantly released into the aquarium, is the number one killer of tropical fish. Fast, easy and accurate, this test kit measures ammonia levels from 0 to 7 ppm.  API Test Kit Ammonia for Fresh or...

    $15.48
    Add to Cart
  • API Phosphate Test Kit API Phosphate Test Kit

    API

    API Phosphate Test Kit

    API Phosphate Test Kit.Tests tap water & fresh or saltwater aquariums for carbonate hardness (KH). Can be used to determine the proper dose of pH buffers.    API Phosphate Test Kit.Tests tap water & fresh or saltwater aquariums...

    $14.98
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  • API Nitrate Test Kit for Fresh or Saltwater API Nitrate Test Kit for Fresh or Saltwater

    API

    API Nitrate Test Kit for Fresh or Saltwater

    API Test Kit Nitrate for Fresh or Saltwater.Measures nitrate levels in both fresh & saltwater aquariums. Tests nitrate levels from 0 to 160 ppm. 90 tests per kit.  API Test Kit Nitrate for Fresh or Saltwater.Measures nitrate levels in both fresh...

    $13.98
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  • Salifert Nitrite Test Kit

    Salifert

    Salifert Nitrite Test Kit

    Salifert Nitrite Aquarium Test KitNitrite is a substance that is toxic to fish and invertebrates. It is a misconception that once a tank is through its cycle (first 3 or 4 weeks) that nitrite has vanished.Many nitrite test kits suffer from interference...

    $12.89
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  • Salifert pH Test Kit

    Salifert

    Salifert pH Test Kit

    Salifert pH Aquarium Test Kit The pH value can have a major impact on the growth of corals and calcareous algae and on many biological processes. The pH should not be allowed to fluctuate more than approx. 0.3 units during 24 hours and should preferably...

    $12.49
    Add to Cart
  • API Nitrite Freshwater/Saltwater Test Kit API Nitrite Freshwater/Saltwater Test Kit

    API

    API Nitrite Freshwater/Saltwater Test Kit

    API Nitrite Freshwater/Saltwater Test Kit.Toxic nitrite is produced by nitrifying bacteria in the biological filter as it breaks down ammonia. This kit tests for harmful nitrite and measures levels from 0 to 5.0 ppm.  API Nitrite...

    $11.99
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  • API GH & KH Freshwater Test Kit API GH & KH Freshwater Test Kit

    API

    API GH & KH Freshwater Test Kit

    API GH & KH Freshwater Test Kit. Tests tap water and freshwater aquariums for general hardness (GH) and carbonate hardness (KH). Helps detect stress on fish caused by rapid pH shifts, which result from low KH levels and helps aquarists...

    $10.99
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  • Seachem Alerts Combo Pack Ammonia & PH Sensors Seachem Alerts Combo Pack Ammonia & PH Sensors

    Seachem

    Seachem Alerts Combo Pack Ammonia & PH Sensors

    Seachem Alerts Combo Pack Ammonia & PH Sensors No strips, no tests, just constant readings. Now Ammonia Alert and pH Alert come together! Ammonia Alert and pH Alert employ Seachem Sensor Technology; a sensor changes color reversibly to alert you to...

    $10.73
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  • API High Range PH Test Kit for Saltwater API High Range PH Test Kit for Saltwater

    API

    API High Range PH Test Kit for Saltwater

    API Test Kit High Range PH for SaltwaterUse to measure pH changes in marine aquariums, aquariums with African cichlids, and very alkaline tap water. Reads the pH of water within the high range of 7.4 to 8.8. 160 tests per kit. API Test Kit High Range PH...

    $9.48
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  • API KH Test Kit for Fresh or Saltwater API KH Test Kit for Fresh or Saltwater

    API

    API KH Test Kit for Fresh or Saltwater

    API Test Kit KH for Fresh or Saltwater.Tests tap water & fresh or saltwater aquariums for carbonate hardness (KH). Can be used to determine the proper dose of pH buffers.    API Test Kit KH for Fresh or Saltwater.Tests tap water &...

    $8.99
    Add to Cart
  • Seachem Ammonia Alert Sensor Seachem Ammonia Alert Sensor

    Seachem

    Seachem Ammonia Alert Sensor

    Seachem Ammonia Alert Ammonia Alert™ is an innovative color device for continuously detecting and monitoring toxic free ammonia. A sensor changes reversibly from yellow to green to blue, relative to the ammonia concentration. No test kits, chemicals, or...

    $8.26
    Add to Cart
  • pH Alert Sensor by Seachem

    Seachem

    pH Alert Sensor by Seachem

    pH Alert Sensor by Seachem.pH Alert is a unique color device designed to be placed in the aquarium or filter and monitor pH continuously. A sensor changes color reversibly to alert you shifts to in pH levels between 5.8 and 8.2. FRESHWATER ONLY. No...

    $6.95
    Add to Cart
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