How ironic, I just made a little rack for my tank today.









yes, the frag rack is in the tank in this pic. I wanted it to be as out of sight as possible. It worked out pretty well I think. Now I don't have frags all over the sandbed in my tank.



I built it exactly as you described, egg crate, epoxy, and a cheap little mag cleaner. The only thing I did different is spray it with some fusion to make it even less noticable.