Evolution Aqua Pure Aquarium Balls

PURE Aquarium is a bacterial treatment for aquariums of all sizes. Inside every ball there are millions of live bacteria and enzymes.

Once added to your aquarium, the bacteria and enzymes inside each ball will start to break down the ammonia and nitrite in your aquarium’s water. PURE Aquarium also breaks down organic waste, which is often the cause of poor water clarity.

PURE Aquarium will leave your water crystal clear and healthy.
http://www.fish-fish-fish.com/evolution-aqua-pure-aquarium-balls.html