Tetrafauna ReptoFilter For TerrariumsThe Tetrafauna ReptoFilter provides efficient, 3 stage filtration in as little as 2 inches of water, making it ideal for the low water level aquatic environments preferred by turtles, newts and frogs. Its perfect for creating a naturalistic waterfall in your pets habitat! Efficient filtration for aquatic turtle and amphibian terrariums Keeps water clear and removes odors Uses easily replaceable filter cartridges The filter lid allows no entry for