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API® MELAFIX Fish Treatment is a natural antibacterial treatment that treats infections in fish. Common bacterial infections are open wounds and abrasions, tail rot, eye cloudiness, and oral thrush. MELAFIX...

API® MELAFIX Fish Treatment is a natural antibacterial treatment that treats infections in fish. Common bacterial infections are open wounds, abrasions, tail rot, eye cloudiness and thrush. MELAFIX Fish Treatment...

API® TROPICAL MINI PELLETS contain high-quality proteins – including squid and shrimp – for optimal growth of small fish, and taste of vanilla, garlic and banana.

High nitrate levels in an aquarium indicate a buildup 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 aquarium in the form of fish waste, uneaten food, and by nitrifying bacteria in your aquarium's natural cycle as they break down ammonia. Low levels...

API® CHICHLID PELLETS contain squid and menhaden to provide essential amino acids that aid in the optimal growth of your fish, as well as a nutrient-rich blend of plant proteins,...

API® CHICHLID PELLETS contain squid and menhaden to provide essential amino acids that aid in the optimal growth of your fish, as well as a nutrient-rich blend of plant proteins,...

API® Tropical PELLETS contain high-quality proteins - including squid and shrimp - for optimal growth, and improved palatability. API TROPICAL PELLETS are specially formulated for tropical community fish such as...

API® Tropical PELLETS contain high-quality proteins – including squid and shrimp – for optimal growth, and improved palatability. API TROPICAL PELLETS are specially formulated for tropical community fish such as...

API® PERFECT START is a unique aquarium starter package that provides everything you need to start your new aquarium, keeping your fish healthy and your water crystal clear. The products...

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

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

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

The 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 to set it...

The API® pH Test Kit monitors pH to maintain healthy freshwater conditions in your tank. pH control is essential to prevent the harmful effects of excessive alkaline or acidic aquarium...

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

The API® pH UP pH modifier raises the pH levels in your aquarium to make the water more alkaline when levels get too low. pH is a measure of acidic...

The API® pH UP pH modifier raises the pH levels in your aquarium to make the water more alkaline when levels get too low. pH is a measure of acidic...

The API® pH UP pH modifier raises the pH levels in your aquarium to make the water more alkaline when levels get too low. pH is a measure of acidic...

Phosphates can enter your aquarium through tap water, fish waste, and decaying organic matter such as uneaten Food and dead algae. Excess phosphate contributes to unsightly algae blooms and green...