Just finished building the framework for my stand and wanted to ask a few questions before I skin the stand. I currently have a 75 gallon 48x18. I am hoping to get a 180 gallon 72x24 soonish. The stand measures 72.5x24.5x31. The top frame is 2x6. I built supports at 48in with legs in the back only for the 75 gallon. Do I need support in the front--2 more legs where the edges of the 75 will be? I will use 1/2 or 3/4 in ply on the top and sides.