Enhance your finned friend s quality of life with No More Algae Tank Buddies. These fizzing tablets help keep your tank clean and your fish safe from harmful algae that can siphon away essential nutrients. The aquarium algae control tabs effectively inhibit the growth of free-floating algae blooms and algae that grow on the sides of glass and acrylic tanks. They work quickly transforming murky water back into crystal-clear mineral-rich biosphere. Each pack includes eight fish tank cleaner tablets; they are not recommended for use with live plants or turtle tanks.