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The API Ammonia Test Kit measures ammonia to help you prevent fish loss.


The API Master Test Kit measures the 4 most important levels in freshwater aquariums quickly and accurately. pH, high range pH, ammonia, nitrite, and nitrate.


Keep track of your aquarium's GH and Kh with this test kit!


Use the API® NITRATE TEST KIT to ensure that the nitrate levels in your tank are safe and healthy for your fish.


The API® NITRITE TEST KIT reads nitrite levels quickly and accurately in your tank, and tests parameters from 0 to 5 ppm.


Measure levels of Nitrite, Nitrate, Carbonate & General Hardness, and pH found in aquarium water.


Replacement API Test Tubes, ideal for API test kits.


Each kit comes complete to test 5 essential water parameters to help ensure you are maintaining a safe and healthy environment for all of your aquatic inhabitants


Continuously monitors ammonia and freshwater pH

Water Test Kits

Seachem Ammonia Alert


A sensor changes reversibly from yellow to green to blue, relative to the ammonia concentration

Water Test Kits

Seachem pH Alert


pH Alert is a unique colour device designed to be placed in the aquarium or filter and monitor pH continuously