I have searched on here and google, so I have some ideas. But I want to place a 120 gallon on top, or bottom. The foot print of the 120 is 48x24(i think I'm at work but will double check) and about 30 or so high. I want to place a 90 ( my goal) or a 75 under or on top. Any ideas on how it can be done while still giving the bottom tank some visibility? I am not making a fancy stand I can live with a skeletal stand.