I am in the process of moving a 240Gal FOWLR. It has/had a bio ball wet/dry sump. Today while removing and moving fish, rock, sand, and water we failed to keep the balls wet. Correct me if I am wrong, but that makes that pretty much a wash. So I was thinking of converting it to a sump with just some extra live rock for now. Thoughts on this? The tank has two corner overflows. each side has a drain pipe with a U at the top and a vent and the pipe is I believe 2". Also there is a hole in each side that is currently set up as the return lines, and they are I believe 1". It seems the previous owner glued the entire plumbing for the return side, so I will likely have to cut it, and redo it. I was thinking of changing up the drain style to something better, and running new return lines outside of the overflow boxes. Thoughts on what style I can go with, and how well it will work with the 2 different size tubes? Thanks in advance. The link in my Sig is my build/transformation thread.