"We have spent loads of $$$ trying different filters for our red-eared slider turtle habitat, and NONE of them worked like this one, it's AWESOME! It continues to keep the water very clear and saves from having to clean it every week. In fact, we now clean it every 6-8 weeks. Rinsing the tubing can be a pain, which should be done much more often because slime does build up easily, HOWEVER, still love this product."