i will be setting up my 125 soon and i already have 2 penguin 350s but i would like to switch to a single canister to minimize clutter in the tank. i like the pro3s gph but the pro2 has the built in heater but its only 160w, will this heat my tank? house is usually 70ish. both these filters are expensive so i want to know their worth it. tank will be heavily stocked. please no sugg for a sump as i have babies and crazy cats that like to get into everything. im already leaning towards the pro3 but even 450gph doesnt seem like a very good turnover rate for a 125.