hi i have a 55 gallon tall tank in which i am keeping my three juvenile turtles in. i have the water level lowered and a floating turtle dock in there with them everyone is happy and healthy. i know they will need a bigger tank so dont flame me. these turtles are small and very young. they have TONS of room to grow and within the next year will be in a pond most likely. if not a much bigger tank. right now the problem is the only filter i have for them is a hang on back filter. and i know canisters are much quieter because i own a couple. but i cant afford to buy a new canister for their tank right now and id like a way to quiet down the water noise on their tank. i have more than 10 tanks in the room with this one so noise isnt the problem its just this one tank in particular is LOUD because the water is falling like 6 inches or so. anyway i can quiet it down? i was thinking of putting a piece of plastic on the filter for the water to run down. just dont know how i will attach it or if there is any better ideas. or im about to go buy like three internal filters. help?