I was actually thinking about that the other day. People seem to use them alot for reef tanks but does anybody here use them for their freshwater setups?
I also use it.. its a great way to level out the temperature of the tank. Also, It cant hurt to have additional oxygen and the fishes likes the current it produces.
i use to use a 400 gph powerhead in my 75 gallon for a school of caribe piranah, they loved it, theyd swim hard against the current, almost like a treadmill for fish hahaha