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API® MARINE STRESS COAT water conditioner instantly removes chlorine, chloramine, and ammonia from tap water, making the water safe for fish in your saltwater aquarium. This product promotes the regeneration...

API® MARINE STRESS ZYME bacteria cleaner contains millions of live bacteria that consume sludge and organic debris, reducing tank maintenance by keeping live rock, coral reefs, sand, gravel, and tank...

API® MELAFIX fish treatment is a completely natural antibacterial treatment that addresses infections in fish. Common bacterial infections include open wounds and scratches, fin rot, cloudy eyes, and mouth fungus....

API® MELAFIX fish treatment is a completely natural antibacterial remedy that treats infections in fish. Common bacterial infections include open wounds and abrasions, tail rot, eye cloud, and mouth fungus....

API® MELAFIX fish treatment is a completely natural antibacterial remedy that treats infections in fish. Common bacterial infections include open wounds and abrasions, tail rot, eye cloud, and mouth fungus....

API® TROPICAL MINI high-quality pellets contain excellent proteins - including squid and shrimp - to ensure optimal growth for small fish, and they enhance palatability with flavors of vanilla, garlic,...

API® NITRA-ZORB product is a ready-to-use filtration media that can be added to the water filter to remove ammonia, nitrite, and nitrate. The NITRA-ZORB filtration media consists of natural and...

High nitrate levels in your aquarium indicate the accumulation of fish waste and organic compounds, leading to poor water quality and increased algae growth. Conversely, maintaining a low nitrate level...

Nitrite is produced in the tank from fish waste, uneaten food, and through oxidizing bacteria in your tank's natural cycle as ammonia breaks down. Low nitrite levels inhibit respiration and...

API® CHICHLID pellets contain squid and anchovies to provide essential amino acids that help optimize the growth of your fish, along with a rich blend of plant proteins, spirulina, banana,...

API® CHICHLID pellets contain squid and menhaden fish to provide essential amino acids that support optimal growth of your fish, along with a rich blend of plant proteins, spirulina, banana,...

API® Tropical Pellets contain high-quality proteins – including squid and shrimp – for optimal growth, and their flavor is enhanced with garlic. API Tropical Pellets are specially designed for tropical...

API® TROPICAL pellets contain high-quality proteins - including squid and shrimp - for optimal growth, complemented by garlic flavor. API TROPICAL pellets are specifically designed for tropical community fish such...

The API® PERFECT START pack is a unique starter kit for ornamental fish that provides you with everything you need to start your new tank, keeping your fish healthy and...

API® pH DOWN pH regulator lowers pH to make freshwater aquariums more acidic for fish and plants when levels rise significantly. pH is a measure of acidic or alkaline conditions...

API® pH DOWN regulator lowers pH to make freshwater aquariums more acidic for fish and plants when levels become too high. pH is a measure of the acidic or alkaline...

The API® pH DOWN acidifier lowers the pH level to make freshwater aquariums more acidic for fish and plants when levels rise significantly. pH is a measure of the acidic...

The API® pH Test and Adjust Kit not only lets you easily and accurately test the pH level in your freshwater aquarium, but also allows you to adjust it to...

The API® pH Test Kit monitors pH levels to maintain healthy freshwater conditions in your aquarium. Controlling pH levels is essential to prevent the harmful effects of water that is...

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