API

Measures pH, Nitrite, Nitrate, Carbonate & General Hardness. Just dip & read!

Quickly clears cloudy aquarium water, eliminating clouds caused by dirt and debris. Clumps tiny particles, causing them to fall to the bottom or...

Quickly clears cloudy aquarium water, eliminating clouds caused by dirt and debris. Clumps tiny particles, causing them to fall to the bottom or...

Quickly clears cloudy aquarium water, eliminating clouds caused by dirt and debris. Clumps tiny particles, causing them to fall to the bottom or...

A revolutionary new product for controlling many types of algae in freshwater aquariums containing live plants and fish. Keeps freshwater aquari...

A revolutionary new product for controlling many types of algae in freshwater aquariums containing live plants and fish. Keeps freshwater aquari...

A revolutionary new product for controlling many types of algae in freshwater aquariums containing live plants and fish. Keeps freshwater aquari...

A revolutionary new product for controlling many types of algae in freshwater aquariums containing live plants and fish. Keeps freshwater aquari...

Aquarium Algaecide that is EPA-registered as reef-safe. Algaefix Marine controls many types of algae in marine & reef aquariums. It will not...

Detoxifies ammonia produced by fish waste.Removes chlorine and chloramine from tap water. Eliminates ammonia stress and protects healthy gill fu...

Detoxifies ammonia produced by fish waste.Removes chlorine and chloramine from tap water. Eliminates ammonia stress and protects healthy gill fu...

Detoxifies ammonia produced by fish waste.Removes chlorine and chloramine from tap water. Eliminates ammonia stress and protects healthy gill fu...

Treat your tap water, and provide a safe environment for freshwater fish instantly and easily with API AQUA ESSENTIAL water conditioner. Tap wat...

Treat your tap water, and provide a safe environment for freshwater fish instantly and easily with API AQUA ESSENTIAL water conditioner. Tap wat...

Treat your tap water, and provide a safe environment for freshwater fish instantly and easily with API AQUA ESSENTIAL water conditioner. Tap wat...

Instantly makes water safe for Bettas by removing chlorine, chloramine and heavy metals from tap water and adding electrolytes. It also detoxifi...

An all natural salt, made from evaporated sea water. Helps improve gill function to reduce stress. Reduces electrolyte loss and promotes healthy...

An all natural salt, made from evaporated sea water. Helps improve gill function to reduce stress. Reduces electrolyte loss and promotes healthy...

Rid your fish of fungal infections quickly and effectively with API LIQUID FUNGUS CURE Freshwater Fish Medication. API LIQUID FUNGUS CURE Freshwate...

Together, Ammo Lock and Stress Zyme assure good water quality, an efficient biological filter, healthy fish and a clean aquarium. Use when setti...

Use to measure pH changes in marine aquariums, aquariums with African chchlids, and very alkaline tap water. Reads the pH of water within the...

Heals open wounds & abrasions; promotes regrowth of damaged fin rays & tissue; treats fin & tail rot. Will not adversely affect the bio...

Effective for both fresh & saltwater aquariums. High levels of nitrate are a food source for unwanted algae & indicate poor water qua...

Tests for nitrite in freshwater & saltwater aquariums. Nitrite, toxic to fish, is produced by nitrifying bacteria in the biological filte...