I'm setting up a custom 15ishg sump for a 36g bow front display. I have done this before but it was with a much larger setup so basically all I am needing to know is how much water flow can I get away with in such a small tank. Also what size drain do you guys think would be the best 1" or 1.25". I have a sicce syncra 5.0 return pump which I know might be a little over kill but I just wanted to be sure I had the flow I need after all the head loss. There will be bubble traps in the sump