Sponge Filters Nano tanks (less than 50 litres) | 50 - 100 litres | 100 - 200 litres | 200- 300 litres | 300+ litres | All Nano tanks (less than 50 litres) 50 - 100 litres 100 - 200 litres 200- 300 litres 300+ litres Aquarium Corner Sponge Filter (XY 2892) £7.79 Add To Basket Aquarium Corner Sponge Filter (XY 2893) £11.49 Add To Basket Aquarium Sponge Filter (PK80) £4.25 Add To Basket Aquarium Sponge Filter (PK200) £5.69 Add To Basket Aquarium Sponge Filter (PK220) £5.69 Add To Basket Aquarium Sponge Filter (XY380) £6.59 Sold Out, more soon! Add To Basket Single Green Bio Sponge Filter (PK003) £6.35 Add To Basket Double Green Bio Sponge Filter (PK004) £7.29 Add To Basket