Filters
One of the best applications for internal filters is in the world of semi-aquatic reptiles, amphibians, and aquatic turtles. Submersible filters work well for these types of habitats because the aquarium or habitat does not need to be full for them to function. These filters, such as Cascade internal filters or canister filters, can be used in the building of a semi-aquatic habitat, where half is land and half is water, or it can be used in entirely aquatic setups, such as those used for red eared slider turtles. Even with a filter, habitats still need to have water changed on a regular basis.