Aquarium external filter aquarium size 400 l 1200 l canister volume 25 l filter volume 12 l 1 5 l prefilter type of aquarium freshwater suitable aquarium size 400 1200 litres minimum aquarium size 400 litres maximum aquarium size 1 200 litres pump performance 1 700 lh operating power input 25 watt total head 26 m filter volume 135 litre dimensions 33 x 33 x 567 cm