I know eggcrate is strong and is very difficult to break, but would it be a good idea to place egg crate under the tank rather than inside it? My friend asked me this question, and I wasn't sure, so I thought i'd ask you guys. He wants to put a 20g long on a 46" x 18" table. What I'm not so sure about it since the top layer of wood is roughly 3/4" thick. He currently has a 10g and a 2.5g (both gravel-less) on it, and it looks fine, but could it hold 250+ lbs? The legs of the table are 2"x2", but at the bottom, they curve in and are only 1.5"x1.5". So, what should he do? 
