Aquarium Master 4gal Nano Power Filter

Nano Power FilterUltra efficient filtration system for Nano aquariums Betta tanks and small desktops up to 4 gallons. Dual-Stage filtration mechanical and biological filtration. Easy to install simple to maintain adjustable flow control. Traps micro and macro organic particles and foreign debris. Porous biological sponge promotes beneficial bacteria colonization. Promotes a healthy aquatic environment.