Pisces Establish Startup Bacteria 100ml ESTABLISH is an outstanding solution for all new aquariums. Contains nitrifying bacteria strain for establishing a healthy bio system in a new aquarium. Contains a specially selected fermented bacteria which breaks down harmful ammonia, nitrogen sulphide and nitrite. Helps form dominant micro organism species which also inhibit pathogenic bacteria and green water. Directions Use 10ml per 100L of aquarium water. Use when first establishing a new aquarium and whenever conducting a water change.