Ok, so I'm down to the last of the big questions before set up begins. The tank that I'm setting up is a 72 gallon bow front (all glass) with a 30 gallon sump. You know the type This is a reef ready tank with 2 holes in the bottom and the nice baffle in front of it. The problem is that there is only "2" holes. the holes are 1 1/2" diameter. after the builkhead is installed the drain is 1" dia (un obstructed) This is fine if I was using both of the holes for the overflow. But I was planning on using one for the return. I know this really limits my overflow amount. I would love to have the back of the tank drilled in the corners for return plumbing. That would be a cool set up BUT, I'M SCARED TO DEATH TO DRILL THE TANK!!!! and of course the LFS will drill it but with no gaurentee (not that I blame them). The question is.....is there any type of "nice" over the back set ups available that I can purchase for the return?? I can build one for each side out of PVC but that probably won't look as good as something designed for that purpose. I have lots of room in the canapy to cut out for something to go over the back. Please give me some ideas so that I can use both 1" holes for return.