Hex Perfecto Undergravel Filter
(5.0 out of 5, based on 1 review)
The Perfect-a- Flow Undergravel Filter is a biological filtration system for fresh or saltwater aquariums. The filter circulates water through the gravel bed and oxygenates it for beneficial bacteria growth. The slots on the filter plate have been designed to draw water evenly over the entire plate from front to back and left to right. The high tube connectors are molded into the filter plates to offer a secure grip onto the one-inch diameter lift tubes to keep the tubes from being knocked out by fish and preventing gravel from falling under the filter plate. When using an air pump and air stones use two uplift tubes per plate. The fish protector is molded right into each elbow to prevent fish from entering the uplift tubes. The Perfect-A-Flo Carbon Cartridge (not included) will fit into the fish protector. These cartridges contain top-quality activated carbon to remove harmful gases, odors, and unsightly discoloration.