Ok every one im looking into getting my first canister filter. Im lookng at the sunsun HW-704B. Shows its a 5 stage 4 baskets and 1 uv light. Shows the gph is 525 and the power pump is 45 W. Reviews look good my question is would this be to big for my 30 gal? Eventually ill upgrade to a bigger tank so if i get the bigger one now i want have to buy a different one when the time comes. Thank you in advance.