Aquatopia 650 Corner Flow Internal Filter is suitable for aquariums 200 litres to 300 litres. It has a flow rate of 650 litres/hours. The Aquatopia corner flow filter is for use in freshwater aquariums. It is energy efficient, but still powerful enough to do a solid job. This corner flow filter needs low maintenance of service on your part. Aquatopia corner flow filters are great for turtles. Specially designed, filter canister is easy to remove, clean and maintain. Save space by fitting neatly in the corner of an aquarium.