hi guys, i have a 55 gallon tank thats just about at the end of the cycling process and i want to add another power filter. I have a shitty aqua tech filter on it now but i wanna add another to help clean the tank. I was gonna add a ac500 power filter and use that at the same time as the aquatech for double duty. Is there anything i should know about adding a second filter? will it mess anything up with my current set up. and by the way, this is for the tank i plan to use for my p's when i get them very soon.