(W.S) Green Bacter Plus 500mlGREEN BACTER PLUS is a plant supplement, primarily composed of plant organic acids that feed beneficial bacteria in aquariums and filters, and contains minerals which help stimulate growth of the bacteria. Add GREEN BACTER PLUS to aquariums during the initial setup period when beneficial bacteria start to grow, or when the biofiltration performance declines and water quality degrades. It will promote the growth of beneficial bacteria and increase