You may have heard that undergravel filters are obsolete. Nothing could be further from the truth. They may be old-fashioned, but they work! In our opinion, any freshwater aquarium equipped only with a hang-on-tank power filter can greatly benefit from an undergravel filter. Those marine tank hobbyists that can't afford a wet-dry system can provide greater biological filtration by installing an undergravel filter. Undergravel filters also provide an easy way to set up a plenum (Jaubert) reef system.

Nothing promotes a healthy aquarium environment like the Perfect-a-Flo Undergravel Filter. For fresh or salt water, Perfecto filters are manufactured with a unique design that permits uniform flow across the entire tank-no other undergravel filter performs as well. Perfecto filters are easy to install. A fish protector on the flow spouts and a raised tube connector to keep gravel from falling beneath the plate. Requires either an air pump or a powerhead to operate. We recommend using one Hagen AquaClear 20 Powerhead. This is a single plate model and will fit a 10 gallon hexagonal aquarium.

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