Starting a Biological Filter - Add 100 mL (approximately 1/2 cup or 3 fl.oz) Bacta-Pur® N3000 per 1000 L (approximately 250 US gallons) of tank water. Continue addtions of half dose daily until filter activity has stabilized. Small cold water systems, such as lobster tanks should have DAILY additions of 100 mL Bacta-Pur® N3000 per 200 L or 4 fl oz (0.5 cup) per 50 gallons of tank water until filter activity has stabilized.
Maintaining a Biological Filter - Add weekly 100 mL (approximately 1/2 cup or 3 fl.oz) Bacta-Pur® N3000 per 1000 L (approximately 250 US gallons) of tank water. Small cold water systems, such as lobster tanks should have weekly additions of 100 mL Bacta-Pur® N3000 per 200 L or 4 fl oz (0.5 cup) per 50 gallons of tank water.
Maintaining a Biological Filter with Fluctuating loads - Use BACTIVATOR® LSN or BACTIVATOR® AQN for automatic and continuous pre activation, growth and addition of Bacta-Pur® N3000.
All water sterilization equipment should be turned off during start-up of a biological filter.