API Test Kits

Nitrite is produced in the aquarium in the forms of fish waste, uneaten food, and by nitrifying bacteria in your aquarium’s natural cycle as it br...

  Salicylate test measures ammonia levels in both fresh & saltwater aquariums. Ammonia, the #1 killer of tropical fish, is continually produc...

API® 5-IN-1 TEST STRIPS are the quick and easy way to test the 5 most important aquarium water parameters – pH, KH, GH, nitrate, and nitrite – i...

Copper Test Kit Copper – a treatment for many parasitic infections – must be monitored in an aquarium or a pond. The copper level can drop too low...

This kit allows for easy and accurate measuring of calcium levels to help in maintaining a healthy aquarium. Why test for Calcium?Monitoring calci...

The Phosphate Test Kit reads the total phosphate level in parts per million (ppm), which are equivalent to milligrams per liter (mg/L) from 0 ppm ...

Saltwater Master Test Kit – A complete kit for testing marine aquarium water. Tests water four ways to protect marine fish and invertebrates from ...

The API® SALTWATER MASTER TEST KIT measures the 4 most important saltwater parameters – pH, ammonia, nitrite, and nitrate – to enable easy testing...

The API® High Range pH Test Kit measures pH changes in marine aquariums, aquariums with African Cichlids, and very alkaline tap water. The API® ...

API Carbonate Hardness (KH) Test Kit tests fresh or saltwater aquariums for carbonate hardness (KH), and helps monitor water quality and prevent i...