It has added prebiotics that made life so much easier to cycle new aquariums. It is made of premium sintered glass with iron added, which puts together a ring shape that houses billions of beneficial bacteria to get rid of ammonia, nitrite, and nitrate in the aquarium.
Through the micro bacterial activities, prebiotics can modify toxins into less toxic waste or even neutralize them completely by absorbing the toxins into your fish. Prebiotics are amazing! They will help your fish feel better, and keep your water clean.