API - Making a better underwater world

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 bre...

The API® HIGH RANGE pH TEST KIT measures pH changes in marine aquariums, aquariums with African Cichlids, and very alkaline tap water. The API HIGH...

Fish & tap water conditioner. The only marine water conditioner with the healing power of Aloe Vera. Developed for use with a protein skimmer: ...

API® Activated Filter Carbon contains a special blend of highly activated carbon that removes poisonous waste and toxins from fresh and saltwater a...

API® Ammo-Chips works as an economical and rechargeable ammonia remover for use in freshwater aquariums and ponds. This product promotes a healthy ...

API® Marine Stress Zyme contains millions of live bacteria that consume sludge and organic debris, reducing aquarium maintenance by keeping live ro...

The quick and accurate way to test for the presence of ammonia. This kit reads 0-6 ppm of ammonia. Desiccant-lined tube, with snap-tight cap, provi...

PHOS-ZORB filtration media is scientifically proven to remove phosphate and silicate. Each pouch treats up to 210L for 2 months. Benefits: Elimina...

The quick and accurate way to test pH.  Tests a wide range: 6.0 – 9.0. Desiccant-lined tube, with snap-tight cap, provides maximum moisture protect...

API® Marine Complete Trace acts as an all-natural source of over 60 trace elements found in sea water, plus iodine. It replenishes trace element im...

Benefits: Clears aquarium water Treats up to 210L Will not raise phosphate levels Fits most filters For use in fresh water, salt water, and reef a...

The dual-action API® Ammo-Carb mixes Ammo-Chips and Activated Filter Carbon to rid aquarium water of dissolved organic materials, ammonia, colours,...

Calcium is vital for the proper health, growth, and coloration of your fish. API® Marine Calcium is a natural way to increase calcium levels in you...

API MARINE MAGNESIUM raises and restores magnesium levels in your reef aquarium, and should be used whenever magnesium deficiency is present in you...

Plant nutrient spray provides all essential nutrients to nourish plants for strong and healthy growth. Promotes healthy leaves and bigger, brighter...