I'm getting close to setting up a 90 gallon tank. One of the only things i need is a return pump..... What size would I need? If it factors in I plan on keeping fowlr for awhile as i have been out the hobby for a long time. I will be using an amircale sump initially then setting up a 55 sump/fugue. I purchased a t5 fixture to give me more livestock options down the road and will be using a Berlin skimmer