Skilter 250 Protein Skimmer & Power Filter

One of the more effective protein skimmers on the market. It also employs a power filter configuration that is effective, durable, quiet, and very easy to operate and maintain. It is probably the best buy for the money of any other skimmer This unit hangs on the back of the aquarium like a normal power filter. Requires at least 4.5" of clearance between the aquarium and the wall. For up to a 55 gallon aquarium.