API - Making a better underwater world

The API® Saltwater Master Test Kit measures the 4 most important saltwater parameters – pH, ammonia, nitrite, and nitrate – to enable easy testing ...

API pH DOWN lowers pH to make freshwater aquariums more acidic for fish and plants pH is the measure of acidic or alkaline conditions of water. A v...

NITRA-ZORB filtration media is scientifically proven to remove aquarium toxins. Benefits: Removes ammonia, nitrite, and nitrate Follow API Easy C...

API pyramid-shaped feeder block contains nutritious food pellets that are released slowly, as the pyramid dissolves. Provides a superior nutrition ...

Reef –safe aquarium algaecide. Controls many types of algae in marine and reef aquariums. Will not harm marine fish, corals and other invertebrates...

GOLDFISH PELLETS contains a rich blend of carotenoids, including spirulina and carrot to enhance the vibrant colors of fish. Also, includes wheat g...

The API® AMMONIA TEST KIT measures ammonia to help prevent fish loss, as ammonia is the number one stressor and killer of tropical fish. Ammonia is...

pH UP raises pH to make aquarium water more alkaline pH is the measure of acidic or alkaline conditions of water. A value of 7.0 corresponds to a ...

GOLDFISH FLAKES contains Menhaden and squid to provide essential amino acids for optimal growth, & carotenoids to enhance the vibrant colors of...

API® Safe & Easy Spray cuts through white, crusty mineral deposits in your aquarium, leaving a protective coating behind to reduce future maint...

API® Betta Water Conditioner is a multi-purpose water treatment that instantly makes tap water safe for Bettas by removing chlorine, chloramines, a...

TROPICAL MINI PELLETS contains high quality proteins, including squid and shrimp, included for optimal growth, as well as a unique palatable blend ...

Automatically sets and stabilizes pH at 7.5. Removes chlorine and detoxifies heavy metals. Contains electrolytes to reduce fish stress. Use when se...

CICHLID MEDIUM PELLETS contains squid and menhaden to provide essential amino acids for optimal growth as well as a nutrient-rich blend of plant pr...

The API® Reef Master Test Kit test 4 key parameters – calcium, carbonate hardness, phosphate, and nitrate – to keep reef inhabitants healthy. Testi...

TROPICAL GREENS FLAKES is formulated with multiple algae species, beet pulp, and a special plant blend included for healthy growth and development....

Automatically sets and stabilizes pH at 8.2. For saltwater, brackish and African cichlid aquariums. Use when setting up aquarium or changing water....

Automatically sets & stabilizes pH at 6.5. Removes chlorine & detoxifies heavy metals. Great for Tetras, Discus, and Angels. Contains elect...

Calcium is one of the most important elements in a reef aquarium. Reef invertebrates such as corals, crustaceans, mollusks and even some types of e...

API® Pond Stress Coat acts as a unique water conditioner that replaces the natural slime coating on the skin of your pond fish when it has been dam...

API® Marine Quick Start enables you to start your aquarium immediately, allowing for the instant addition of fish as it kickstarts the natural aqua...

BIO-CHEM ZORB® Makes aquarium water CRYSTAL clear Benefits: Removes aquarium pollutants and odors which cloud water and degrade water quality Does...

Patented pyramid-shaped feeder block contains nutritious, slow-release pellets. Each pellet is a uniformly balanced meal. One pyramid will feed 15 ...

Sturdy, long lasting pad which gives the user hand-held control to reach in and clean the algae from the nooks and crannies of the aquarium.