Ok so now i have a 40b tank. I ordered a 1" drill with two 1" bulkheads, and one strainer for the overflow. Im going to be putting one bulkhead on each side of the tank. No overflow box just the bulkhead. and then those are going to flow down into the sump. So here is what i am asking of people. How much water does a 1" hole produce (gph). What return pump would be best so that the skimmer will have enough time to do its job. How big of a heater should I go? should i go 1 250 hqi or should I go t-5's. I have 2 k4s laying around that i could use for water flow in the display. should i put any more flow? anyones input is welcome. i need to know if i am forgeting something or not planning things right.