Well, I was only going to clean out half of the room in the basement where I planned on putting the tanks, but I decided to do the whole thing instead. That way it will truly be a space dedicated to fish. I can put a work area and table for organizing shipping on one half of the room. I'd like to get the rest of the room cleaned out tomorrow and get the walls painted. I'm thinking of going with white! The dimensions have to be somewhere around 12' wide and 18' long. Should be more than enough room......for now LOL.