Well there's a 50/50 chance that I will be getting our old computer room as my new fish room since we just cleaned it up and the computer is a piece of trash that hasn't been used in 6 (literally) years so we'll be getting rid of it soon. I do have a few concerns though. For one thing it's on the 2nd floor of my house so I'm really nervous about putting anything over a 100 in it. It is a corner room though so if I do any moderately sized tanks I'll be sure to put them in the corner. I am however planning on many small tanks (2-20 gallons) with the max tank being a 55 instead of a few big ones, maybe start breeding some more fish and get into nano tanks. The main reason I made this though was to ask how many cumulative gallons and pounds could a second floor corner room hold without the risk of collapsing? Like I said I'll be doing a lot of smaller tanks so I could always just cut back by a few of them but I'd still like to know. If it helps at all my house is a 13 year old Miranda house so it's not an extremely well built house but it's not like a live in a 10th floor apartment or anything like that. Thanks for the help guys and here's hoping I finally get a fish room!