i just got my powerhead in the mail and put it in my tank. i am not really to sure about this thing. i dont know if i like it for one. its huge and looks kinda stupid in the tank because of its size. i am gonna keep it for like a few days to see how the piranhas like it but i am probobly gonna get rid of it. what do u guys think about these things and where is the best place u think to locate it i also have the quick filter on it which is huge.