API - Making a better underwater world

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...

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

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...

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.

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....

Copper, a common treatment for many parasitic infections, must be monitored in an aquarium or a pond. The copper level can drop too low for the tre...

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...

The API® Algae Scraper is an incredibly durable algae scraper with an 18” long handle to effectively clean glass aquarium walls and prevent user fr...

Fish & tap water conditioner. The only marine water conditioner with the healing power of Aloe Vera. Developed for use with a protein skimmer: ...

API® Marine Stress Zyme contains millions of live bacteria that consume sludge and organic debris, reducing aquarium maintenance by keeping live ro...