Keep your turtle's habitat sparkling with Zoo Med's new Turtle Clean 501. Clean water is essential to the health of all aquatic and semi-aquatic turtle species, and the 501 traps suspended particulate waste, removes odor and chemicals with activated carbon, and breaks down organic toxins with a biological filtration section. The Turtle Clean 501 filter is also great for vivariums, box turtle pools, and aquariums up to 30 gallons.