No More Algae - 8 pk.

Tetra Fizz Tablets are fast dissolving, pre-measured tablets that make caring for aquariums fast, easy and more convenient than other brands of tablets and capsules. It helps inhibit the growth of many types of algae in freshwater aquariums, including free-floating algae blooms and algae which grows on the sides of glass and acrylic aquariums. As a Tetra Algae Control Tablet is dropped into an aquarium, the fizzing action assures you that it's working immediately and dispersing its ingredients throughout the aquarium. Each tablet treats 10 gallons of water.

Active ingredients: Copper sulfate pentahydrate -- 0.05% Diuron [3-(3,4-dichlorophenyl-1, 1-dimethylureal -- 0.67%