I'm getting ready to buy a couple of power heads for my aquarium and I need advice on the correct size to go with. I have a 36 gallon aqueon bowfront tank. I'm looking at a set of wave maker power heads on eBay. For my size tank would I be better off with 2 800gph's or 2 1300gph's. I know the more flow the better so I was leaning toward the 1300's but would that be too much for a tank that's only 30" wide.