Penn-Plax Optimizer Pre Fish Filter

Keep your freshwater or saltwater aquarium sparkling clean with a Penn-Plax Optimizer Pre Fish Filter. This system filters large debris and particles before they reach your canister filter. It’s specially designed for large or dirty fish tanks that easily clog canister filters. Not only is it an additional stage of filtration, the pre-filter extends the life of your canister filter, so it runs smoother, longer. Plus, it comes with two bio-sponges—1 coarse and 1 fine. These sponges help optimize the colonization of anaerobic bacteria. The increased surface area also creates a larger biological bed. Last, the durable, non-slip grip pads at the base make it sturdy and long-lasting. This is also great for use with aquatic turtles and aquatic amphibians.