Ovation 1000 Submersible Power Jet Filters have an innovative design that makes them ideal for odd shaped or shallow habitats like terrariums and other partial water set-ups. Ovation 1000 has a max flow rate of 265 GPH and is recommended for tanks up to 80 gallons. These filters can be operated in the vertical or horizontal position, providing excellent mechanical and biological filtration as well as aeration. Each model includes a spray bar for more enhanced aeration and the air flow can be adjusted with the adjustable air regulator. These amazing little filters feature smooth, ultra quiet operation and dual filter elements of sponge and carbon for efficient filtering ability.