Bio sponge filter, great accessory for aquarium and provides both mechanical and biological filtration for your fish, (NOTE: small sponge filters, please make sure the size before you purchase.)
Small sponge filter, simply install an airline into the unit and provide filtration for your fish, increase oxygen and keep and water clean.
Simply to connect the sponge water filter with an air pump thru airline tubing. Highly efficient filters provide excellent biological and mechanical filtration while maintaining gentle water flow, great for fish, shrimp, and fry tanks.
Aquarium sponge filter come with 2 Available Sizes: Small Ones Dimensions: 3.0"D x 6.5"H for recommended max tank size of 10 Gallons; Large Ones Dimensions: 4.5"D x 8.0"H for recommended max tank size of 20 Gallons.
Package Content: 3 * Large 20 Gallon Sponge Filter + 3 * Small 10 Gallon Sponge Filter. NOTE: You need an air pump and airline tubing to use them, not included here.
