I was digging through all the junk in my garage and found an old, forgotten tank with an undergravel filter. I figured I might as well use it since I have it. I put in plenty of filter media and got the tank cycled in a few days. Now I have in 3 platties, all doing good. The only thing is, this undergravel filter requires a lot of cleaning. Is there anything I can do to make it filter better? I was thinking about getting a sponge filter pad and putting that on top of the filter plate to boost mechanical filtration. Would something like that work am I going to be stuck vacuuming the tank every two days?