sera pond turbo-clear 250 ml 

sera pond turbo-clear is a high-performance product made from enzymes and microorganisms for accelerating the biological breakdown of pollutants in fresh and salt water aquariums. sera turbo-clear reduces organic matter, such as fish waste and food leftovers. It also prevents the formation of unpleasant odors and promotes the biological equilibrium. 250 ml for 10000 liters