how over kill is a fx6 on a 36 inch 72 gallon African cichlid tank? ive been waiting about a month for my custom 72 to be built and just stumbled across a really good deal for a new fx6 260 new in the box from petco and i couldnt pass it up. i have it setup on my 180 to get some bacteria going and was planning on running this on my new 72. is this going to be too much flow and current for a 36 inch tank?