yes, a good filter is a must also! A lot of people feed them in a separate container because of this. I should point out if feeding in a separate container it must have water in it because aquatic turtles can only eat and swallow in water! I feed in my tank, but make sure that I do not feed too much......I have never had an issue keeping my tank clean. I have posted in other threads about turtles and fish, but will tell again that I have guppies, minnows, plecos, snails, ghost shrimp, and singapore shrimp in my turtles tank. They are all still alive and the guppies are breeding like mad! The singapore shrimp and plecos are a little bigger than the turtle, but the guppies and minnows, as I am sure you can imagine, are quite smaller......maybe my turtle is just not a good hunter? Most turtles are carnivorous as hatchlings and more omnivorous, but this does not mean they will not eat meat as adults!!!