Thanks for the kind words folks, it was fun..until the next day, lol
Dr. I had a few things I needed to deal with. I needed to replumb the low flow it wasnt working as well as originally planned, the second was a Tang that made genghis Khan look like a hari kristna. I lost 4 fish to it and 4 MH bulbs. And finally got a line on some really nice rock and wanted to change the body work, hehe
Mark it all depends. When I had a hard shelf that was not going to be supported I used 1 inch doweling, when I had a little support a couple of 1/2 inchers, on a peice that was fairly well supported just one 1/2.
I also used some 1 inch for legs under some of the rock to level it and to keep it off the bottom.
Mike