API - Making a better underwater world

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...

pH is the measure of acidity of water.  A pH reading of 7.0 is neutral.  A pH higher than 7.0 is alkaline, and a pH lower than 7.0 is acidic.  Main...

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

The API® Turtle Sludge Destroyer cleans your aquarium or vivarium using beneficial bacteria, which breaks down organic waste and debris to reduce m...

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...

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...

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...

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...

A complete kit to measure and adjust pH. Tests pH levels from 6.0 to 7.6 and includes bottles of pH Up and pH Down to modify aquarium water pH to d...

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

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...

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.

MARINE FLAKES contains Omega-3 fatty acids to help promote healthy growth and development. For all marine fish including Clownfish, Wrasses, and T...

An incredibly durable algae scraper for cleaning acrylic aquarium walls. Made with an 18" long, strong handle to protect user from getting too wet....