Ok, next silly question. I had a scrap piece of 3/8" plywood that I cut for under the 10g. The problem now is that is it warped. The side I wanted up is bowed down in the center, up at the edges, so when the (empty) tank sits on it, the left & right edges are fully in contact, but at the center there is a gap of about 1/8 of an inch. If I put some weight on it, it's smaller but still there and I'm guessing with 80 lbs of water it's still going to be there.
Since the corners would be supported using the plywood, is that at least better than having them hang off the edge of the stand, or should I get another (unwarped) piece of plywood?