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The API® KH TEST KIT tests fresh or saltwater aquariums for carbonate hardness (KH), and helps monitor water quality and prevent invisible water pr...

API® CICHLID LARGE PELLETS contains squid and Menhaden to provide essential amino acids that assist in the optimal growth of your fish, as well as ...

API® LEAF ZONE plant fertilizer contains iron & potassium for colorful leaves and a vibrant planted aquarium. Product is formulated for rapid a...

API® LEAF ZONE plant fertilizer contains iron & potassium for colorful leaves and a vibrant planted aquarium. Product is formulated for rapid a...

API® MARINE MELAFIX fish remedy is a safe, natural fish remedy which should be used to treat bacterial infections in saltwater fish and corals. MA...

API® MARINE QUICK START nitrifying bacteria enables you to start your aquarium immediately, allowing for the instant addition of fish as it kick-st...

API® MARINE STRESS COAT water conditioner instantly removes chlorine, chloramines, and ammonia from tap water to make water safe for fish in your s...

API® MARINE STRESS ZYME bacterial cleaner contains millions of live bacteria that consume sludge and organic debris, reducing aquarium maintenance ...

API® MELAFIX fish remedy is an all-natural antibacterial treatment that works to treat infections in fish. Common bacterial infections are open wou...

API® MELAFIX fish remedy is an all-natural antibacterial treatment that works to treat infections in fish. Common bacterial infections are open wou...

API® MELAFIX fish remedy is an all-natural antibacterial treatment that works to treat infections in fish. Common bacterial infections are open wou...

API® MELAFIX fish remedy is an all-natural antibacterial treatment that works to treat infections in fish. Common bacterial infections are open wou...

API® TROPICAL MINI PELLETS contains high-quality proteins – including squid and shrimp – for optimal growth for smaller fish, and perfects palatabi...

API® TROPICAL MINI PELLETS contains high-quality proteins – including squid and shrimp – for optimal growth for smaller fish, and perfects palatabi...

High nitrate levels in your aquarium indicate a build-up of fish waste and organic compounds, resulting in poor water quality and an increase in al...

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...

API® CHICHLID PELLETS contains squid and Menhaden to provide essential amino acids that assist in the optimal growth of your fish, as well as a nut...

API® CHICHLID PELLETS contains squid and Menhaden to provide essential amino acids that assist in the optimal growth of your fish, as well as a nut...

API® TROPICAL PELLETS contains high-quality proteins – including squid and shrimp – for optimal growth, and perfects palatability with garlic. API ...

API® TROPICAL PELLETS contains high-quality proteins – including squid and shrimp – for optimal growth, and perfects palatability with garlic. API ...

API® PERFECT START is a unique aquarium starter pack that provides everything you need to kick-start your new aquarium, keeping your fish healthy a...

API® pH DOWN pH adjuster lowers pH to make freshwater aquariums more acidic for fish and plants when levels rise too high. pH is the measure of aci...

API® pH DOWN pH adjuster lowers pH to make freshwater aquariums more acidic for fish and plants when levels rise too high. pH is the measure of aci...

API® pH DOWN pH adjuster lowers pH to make freshwater aquariums more acidic for fish and plants when levels rise too high. pH is the measure of aci...

he API® pH TEST & ADJUSTER KIT not only allows you to easily and accurately test the pH level in your freshwater aquarium, but also allows you ...

The API® pH TEST KIT monitors pH to maintain healthy freshwater conditions in your tank. pH control is imperative to prevent the harmful effects of...

Use the API® pH TEST STRIPS as a quick and accurate way to test pH levels in your water. These test strips measure a wide range of pH, from 6.0 to ...

API® pH UP pH adjuster raises pH levels in your aquarium to make water more alkaline when levels fall too low. pH is the measure of acidic or alkal...

API® pH UP pH adjuster raises pH levels in your aquarium to make water more alkaline when levels fall too low. pH is the measure of acidic or alkal...

API® pH UP pH adjuster raises pH levels in your aquarium to make water more alkaline when levels fall too low. pH is the measure of acidic or alkal...

API® PHOS-ZORB filtration media eliminates cloudy water and dirt caused by phosphates, and helps reduce the maintenance of your aquarium. PHOS-ZORB...

Phosphate can enter your aquarium through tap water, fish waste, and decaying organics such as uneaten food and dead algae. Excess phosphate contri...

API® PIMAFIX fish remedy is an all-natural, antifungal remedy for fish fungal infections, with a formula derived from the West Indian Bay Tree – a...

API® PIMAFIX fish remedy is an all-natural, antifungal remedy for fish fungal infections, with a formula derived from the West Indian Bay Tree – a ...

API® PIMAFIX fish remedy is an all-natural, antifungal remedy for fish fungal infections, with a formula derived from the West Indian Bay Tree – a ...

API® POND ACCU-CLEAR water clarifier works to establish and maintain crystal-clear pond water, quickly clearing murkiness and helping your water fi...

API POND ALGAEFIX algae control effectively controls green water algae blooms, string or hair algae (Cladophora), and blanketweed (Oedogonium) in p...

API POND ALGAEFIX algae control effectively controls green water algae blooms, string or hair algae (Cladophora), and blanketweed (Oedogonium) in p...

API® POND AMMO LOCK ammonia detoxifier serves as a source of nutrition for good bacteria in your pond’s natural biological filter. It also detoxifi...

AQUATIC PLANT FOOD TABLETS provide essential nutrients and trace elements needed by pond plants to ensure non-stop blooming. Tablets contain iron f...

API® POND CHLORINE & HEAVY METAL NEUTRALIZER instantly makes tap water safe for pond life by neutralizing chlorine, copper, lead, and zinc, in ...

API® COOL WATER FOOD delivers proteins that your fish need for optimized growth and reduced waste. Ingredients such as garlic, vitamins, antioxidan...

API® POND ECOFIX SLUDGE DESTROYER bacterial cleaner reduces pond maintenance by breaking down fish waste and dead algae, as well as working to incr...

The API® POND MASTER TEST KIT measures the most important levels in your pond quickly and accurately, including pH, ammonia, nitrite, and phosphate...

API® POND PIMAFIX fish remedy contains an all-natural formula that rapidly treats fungal infections on the body and fins of your pond fish, in addi...

API® POND PIMAFIX fish remedy contains an all-natural formula that rapidly treats fungal infections on the body and fins of your pond fish, in addi...

MICROBIAL ALGAE CLEAN algae control is an alternative approach to algae control and reduces pond maintenance. MICROBIAL ALGAE CLEAN algae control w...

Slowly lower the pH of your pond water to make it more acidic using API® POND pH DOWN pH adjuster. This product slowly neutralizes alkaline substan...