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

Treat and control algae growth and reduce your freshwater aquarium maintenance with API ALGAEFIX Algae Control. This revolutionary product is speci...

Clear up green or cloudy water caused by gravel and other floating particles in your freshwater aquarium quickly and safely with API ACCU-CLEAR Fre...

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...

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 your aquatic life healthy and thriving by testing your aquarium water's calcium levels regularly with this easy-to-use API CALCIUM TEST KIT fo...

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 ...

A lack of electrolytes in aquarium freshwater may cause serious health problems for freshwater fish. API AQUARIUM SALT supplies electrolytes to imp...

API FIN & BODY CURE Freshwater Fish Powder Medication treats bacterial disease, internal and external, in fish, including fin & tail rot, b...

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

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...

Testing water parameters weekly helps prevent invisible water problems that can be harmful to fish. Fish continually release ammonia into the aquar...

API HIGH RANGE pH TEST KIT may be used in fresh or saltwater aquariums to measure pH levels in the range of 7.4-8.8. Unbalanced pH levels, resultin...

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

API FURAN-2 treats a variety of bacterial infections in fish, such as bacterial gill disease, open red sores (Aeromonas spp.), body slime & eye...

Fast-acting API GENERAL CURE Freshwater and Saltwater Fish Powder Medication treats a wide variety of parasites in fish, including velvet, fish lic...

This low voltage thermostat maintains water at 78°F without any adjustments and features red/green indicator lights to let you know when the heater...

With the Tetrafauna Viquarium Terrarium & Aquarium Filter, you can transform your tank into a realistic river bottom environment for aquatic re...

Clear cloudy pond water easily and quickly with Tetra Pond Clumping Water Clarifier. Cloudy pond conditions are caused by overfeeding, gravel sedim...

The submersible filter includes a 3-stage filtration system with a dual-sided Bio-Bag mesh, which catches debris and fish waste while the activated...

The submersible filter includes a 3-stage filtration system with a dual-sided Bio-Bag mesh, which catches debris and fish waste while the activated...

Tetra Whisper UL Air Pump for Aquariums is designed to keep your deep-water aquarium's oxygen levels high, helping to ensure your fish stay healthy...

Tetra Whisper Air Pump for Deep Water Aquariums is designed to keep your deep-water aquarium's oxygen levels high, ensuring your fish stay healthy ...