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At AquaCave, we offer some of the best selection & best prices on API Aquarium Pharmaceuticals Aquarium Test Kits for you marine, reef, and freshwater aquarium.

The research and development scientists at API have pioneered scientific studies on aquarium treatments that have led to significant advances in the care of ornamental fish. This work has garnered over 25 global patents for breakthrough innovations in the aquatic industry. We continue to look for ways to improve the fisheeping experience for everyone. API recently developed the Easy Care Guide for a simple way to care for your aquarium. Easy to follow symbols help correlate in store products with at home care. These steps will show you how to simplify aquarium care so you can spend more time enjoying the beauty of your aquarium.

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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
  •  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
  •  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
  • 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
  • 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
  •  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
  • API Calcium Test Kit API Calcium Test Kit

    API

    API Calcium Test Kit

    API Calcium Test Kit.Calcium is one of the most important elements in a reef aquarium. Reef invertebrates such as corals, crustaceans, mollusks and even some types of encrusting algae need calcium to grow and remain healthy. Over time, calcium levels...

    $13.98
  • API  Freshwater pH Test Kit API  Freshwater pH Test Kit

    API

    API Freshwater pH Test Kit

    API Freshwater pH Test KitpH is the measure of acidity of water. A pH reading of 7.0 is neutral. A pH higher than 7.0 is alkaline, and a pH lower than 7.0 is acidic. Maintaining the aquarium at the proper pH ensures optimal water quality. The pH...

    $12.98
  • API Copper Test Kit API Copper Test Kit

    API

    API Copper Test Kit

    API Copper Test KitCopper, a common treatment for many parasitic infections, must be monitored in an aquarium or a pond. The copper level can drop too low for the treatment to be effective, or can increase to a point that is detrimental to fish health...

    $12.48
  • 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
  • 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...

    $10.99
  • 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
  • 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
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