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Keep your fish healthy and thriving by testing your aquarium water's NO3 levels regularly with this easy-to-use API NITRATE TEST KIT for freshwater...

Tests nitrate levels from 0 to 160 parts per million. High levels of nitrate are a food source for unwanted algae and indicate poor water quality....

Keep your fish healthy and thriving by testing your aquarium water's NO2 levels regularly with this easy-to-use API NITRITE TEST KIT for freshwater...

Keep out of reach of children. This chemical works to lower ph levels for fish. Do not lower ph any more than 0.2 in any 24 hour period.

Keep your fish healthy and thriving by testing your aquarium water's pH regularly with easy-to-use API pH TEST KIT for freshwater aquariums. Testin...

Phosphate can enter the aquarium in fish waste, decaying organic matter and tap water. High phosphate in the aquarium can cause water clarity issue...

Tests phosphate levels from 0 to 10 ppm.

API POND ACCU-CLEAR Pond Water Clarifier quickly eliminates cloudy pond water caused by dirt, silt and floating particles. This fast-working pond c...

Fast-acting API POND ALGAEFIX Algae Control works to control algae growth in ponds, water gardens, and fountains, keeping water clean and clear. AP...

API POND MELAFIX Pond Fish Bacterial Infection Remedy uses the antibacterial properties of tea tree (Melaleuca) to treat bacterial infections in po...

API POND STRESS COAT Pond Water Conditioner works instantly to remove chlorine, chloramines and ammonia from tap water and neutralize heavy metals....

API POND-ZYME SLUDGE DESTROYER Pond Water Cleaner with Barley reduces build-up of fish waste and consumes pond sludge, which is typically a build-u...

Adjusts and stabilizes ph levels. Detoxifies heavy metals. Neutralizes chlorine. For use in freshwater aquariums only. Will set ph level at 7.0, a...

Adjusts and stabilizes ph levels. Neutralizes chlorine. Detoxifies heavy metals. For use in freshwater aquariums only. Sets ph level at 7.5.

In a new aquarium, harmful ammonia and nitrite build up from fish waste, often resulting in fish loss or "new tank syndrome". The unique, patented ...

Measure the most important reef aquarium levels including calcium, carbonate hardness (KH), phosphate and nitrate with API REEF MASTER TEST KIT. Pr...

Measures the most important aquarium health indicators quickly and accurately. Fish waste, uneaten food, plant refuse and other organic compounds c...

API® STRESS COAT water conditioner makes tap water safe for fish by removing chlorine, chloramines and heavy metals from tap water, and contains th...

Description  A patented formula containing Aloe Vera, nature's liquid bandage, to protect & heal fish. Forms a synthetic slime coating on the s...

Heavy metals such as copper, zinc, and lead are present in tap water. These are toxic to tropical fish. For use white never setting up an aquarium...

Good water quality is the key to a healthy, beautiful aquarium. Tap water contains chemicals, such as chlorine and chloramines, which make water sa...

API TURTLE SLUDGE DESTROYER Aquarium Cleaner and Sludge Remover Treatment reduces build-up of turtle waste and consumes aquarium/vivarium sludge, w...

The 14-Day automatic API VACATION PYRAMID FISH FEEDER contains nutritious food pellets that are released slowly, as the pyramid dissolves. It is ma...