What size bulkheads would be recommended for a 125 gallon tank with a sequence snapper as a return? I'm guessing flow will be close to 1000 gph. I would rather be a little too big than a little too small on the bulhead size. This will be a new tank any suggestions on plumbing would be appretiated. Tank dims are 60x18x24, considering using a snapper return with loc-line and two koralia 3 or 4's.