Set of reagents for determining magnesium concentration in freshwater.

Set of reagents for determining iodine concentration in seawater.

Set of reagents for determining iron concentration in fresh and sea water.

Reagent set for determining total chlorine concentration in freshwater.

Set of reagents for determining the concentration of free chlorine in fresh water.

Set of reagents for determining calcium concentration in fresh water.

Set of reagents for determining calcium concentration in seawater.

API Ammonia test kit API Ammonia test kit  for Freshwater and Seawater The API AMMONIA TEST KIT measures ammonia to help prevent fish loss, as ammonia is the number one stressor and killer of tropical fish. Ammonia is released into an aquarium in the forms of uneaten food, decaying organic...

API Nitrite Test Kit API NITRITE TEST KIT for freshwater and saltwater. Nitrite is produced in the aquarium in the form of fish waste, uneaten food, and by nitrifying bacteria in your aquarium's natural cycle when they break...

API Saltwater master test kit API SALTWATER MASTER TEST KIT API SALTWATER MASTER TEST KIT allows you to measure the 4 main seawater parameters - pH, ammonia, nitrite, and nitrate - in order to monitor the natural cycle of the...

API Copper test kit API COPPER TEST KIT for freshwater and saltwater API COPPER TEST KIT allows for easy and accurate monitoring of copper levels from 0 to 4 ppm to maintain copper-based fish treatments at therapeutic levels. The kit measures both free and chelated copper...

API Phosphate test kit API PHOSPHATE TEST KIT for Freshwater and Seawater The API PHOSPHATE TEST KIT makes it very easy to monitor phosphate levels between 0 and 10 ppm in freshwater and seawater aquariums. <Phosphate can be brought into the aquarium by tap water, fish waste and decaying organic...