So here's a stupid question, do I need an airstone in my tank? I havea 46 gallon bowfront, my primary mechanical filter is a H.O.T. magnum, I have a 10 gallon fuge, a seaclone skimmer(just for now). My tank isn't drilled I have a skimmer box.....so a lot of pics I'm seeing of people's set-ups have no stone that's why I'm asking.