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API® POND 5-IN-1 test strips provide accurate results for your pond's water conditions using a high-resolution color chart for easy-to-read results. Measured parameters include pH level, nitrite, nitrate, carbonate hardness,...

API® 5-in-1 test strips are the quick and easy way to test 5 of the most important aquarium water parameters - pH, KH (carbonate hardness), GH (general hardness), nitrate, and...

API® 5-in-1 Test Strips are the quick and easy way to test the five most important aquarium water parameters - pH, General Hardness (GH), Carbonate Hardness (KH), Nitrate, and Nitrite...

API® ACCU-CLEAR Aquarium Water Cleaner quickly clarifies cloudy water, eliminating haze and making your water crystal clear. ACCU-CLEAR Water Cleaner gathers small floating particles together, forming larger particles that can...

API® ACCU-CLEAR water clarifier quickly clears cloudy water in your aquarium, eliminating haze to make your water crystal clear. API ACCU-CLEAR water clarifier clumps small floating particles together, forming larger...

API® ACCU-CLEAR water clarifier quickly clears cloudy water in your aquarium, eliminating the haze to make the water crystal clear. API ACCU-CLEAR water clarifier gathers small floating particles together, forming...

API® Algae Eater Flakes contain a rich blend of algae, plus omega-3 fatty acids, to help promote healthy growth and development. Clover, a good source of fiber for optimal digestive...

API® ALGAE EATER tablets contain a rich blend of algae, plus omega-3 fatty acids, to help promote healthy growth and development. Clover, a good source of fiber for optimal digestive...

API® Algae Eater Tablets contain a rich blend of algae, along with omega-3 fatty acids, to help promote healthy growth and development. Our high-quality formula also includes alfalfa, a good...

The API algae pad is a durable, long-lasting pad that gives you manual control to reach corners and crevices to clean algae from your glass fish tank. This pad scrapes...

The API algae scraper is a very durable algae scraper with an 18-inch handle for effectively cleaning glass aquarium walls and preventing excessive wetting of the user. This scraper scratches...

The API MARINE ALGAEFIX algae control product effectively controls various types of saltwater algae: green algae (Cladophora), "red algae" (Oscillatoria & Spirulina major), and "brown algae" (Cyclotella), in saltwater aquariums...

API ALGAEFIX effectively controls algae in many types of aquarium algae and will not harm your fish or plants when used as directed. You can use ALGAEFIX as part of...

API ALGAEFIX effectively controls many types of algae in aquariums and will not harm your fish or plants when used as directed. You can use ALGAEFIX algae control as part...

API ALGAEFIX effectively controls algae in many types of aquarium algae and will not harm your fish or plants when used as directed. You can use ALGAEFIX as part of...

API ALGAEFIX effectively controls many types of algae in aquariums and will not harm your fish or plants when used as directed. You can use ALGAEFIX as part of your...

API® AMMO LOCK product for ammonia removal is a scientifically Fixative product to protect fish from harmful ammonia by converting toxic ammonia into a non-toxic form. AMMO LOCK for ammonia...

API® AMMO LOCK Ammonia Neutralizer is scientifically proven to protect fish from harmful ammonia by converting toxic ammonia into a non-toxic form. AMMO LOCK Ammonia Neutralizer works instantly in both...

API® AMMO LOCK Ammonia Fixative is a scientifically proven product to protect fish from harmful ammonia by converting toxic ammonia into a non-toxic form. AMMO LOCK Ammonia Fixative works instantly...

Use API® Ammonia Test Strips as a quick and accurate method to test for the presence of ammonia. This kit reads from 0 to 6 parts per million of ammonia,...