As stated above...

I have a 55g. glass tank, 48x13x20, oak trim with back painted black, no scratches to trade for...
a 40g tank that holds water (can be scratched, glass or acrylic) but needs to be the same footprint as the 55 (48x13x16)

Using it as a sump and need a shorter tank for easier access.

Thanks for looking,
Steve