Clear-N-Clear - Undergravel Filter 20 Gallons When not in use

When not in use

but you will not

or whatever you choose to clip on

Australian wild kangaroo packs a punch when it comes to protein

Clear-N-Clear - Undergravel Filter 20 Gallons When not in useThe Penn Plax Penn Plax Undergravel Filter combines the function of a traditional filter while offering maximum viewing since its hidden out of sight. Designed for 40 to 50 gallon fish tanks, this undergravel filter uses mechanical, chemical, and biological filtration to filter harmful pollutants from your aquarium. Undergravel filters create the most natural bacteria bed for fish tanks and provide effective aerobic filtration. Included are 4 filter