Lady Baboon;434171 wrote: We bought a 220 with a cracked bottom 2 years ago. It had been dropped on a corner. Instead of replacing the bottom John siliconed 1/2 inch thick glass tiles 12x12 inches over the crack from one end to the other. Just make sure the tiles are sitting well in silicone. The whole bottom of the tile needs to be covered.
The tank has been up and running without any problems for almost 2 years now.