I set up my 55g mbuna tank with a cascade 1000 canister rated at 265 gph. After much reading I purchased a penguin 350 to supplement the cascade. I have 16 fish in now, they are small but growing obviously so I go to install the penguin but I didn't leave enough room behind the tank. With the rocks this thing has to be 700 lbs. In your experience is it possible to move a 55g during a 30% water change? Or will the canister suffice and use the penguin for the eventual fry tank?