i have a 55g tank with a fluval 305 canister filter... i just bought a aquaclear powerhead rated up to 50 gallons... i positioned it on the right side about 5 inches from the top and 3 inches from the front... i noticed it causes little particles all over the tank that much be from the bottom... i am stocking rams and angels. what would you guys reccomend on this powerhead.. do i need it/does it help. thanks