TURTLE CLEAN FILTER 318Submersible filter is designed to be the go to filter for turtle tanks up to 30 gallons Also works great for filtering box turtle ponds or aquatic amphibian tanks Provides a combination of mechanical, chemical, and biological filtration Fully submersible with easy to change filter cartridges Dual intake ports help prevent clogging from debris Includes a packet of activated carbon and 2 filter sponges