Interpet Aquarium Filter Start No.14 100ml Starts the filtration bacteria colony to create a healthy aquarium. A product of the latest advances in biotechnology. Manufactured using strict culture and quality control process. A guaranteed pure culture of safe, effective bacteria. Does not colour the water. Harmless to all species of fish and plants. When to use:- When maturing a new filter or media, especially when the filter foams are new or have been replaced. When test kits show your filter is not working properly. Once a month to ensure optimum filter function. This product can also be added directly to the aquarium by using either the pipette or the measuring cup. This 100ml bottle will treat 3,600 litres (760 gallons). Price: £4.29 Quantity: