Hello, I actually posted somthing on tanks on wooden floors early in 2008 when I was looking to upgrade to an 800+ litre (96x24x24) aquarium. Ehem, well now im thinking of a 1,500 litre in acrylic (like those lovely tanks in the Greenmachine)it would be 96"x36"x28"h. Am i mad? Everyone else thinks so, I dont have any real aquarium hobyist friends ...they just dont get it. Anyway the concern again is the floor, but especially because this is going to be somthing like 2 tonnes when filled. I have wooden joist floors (Yikes!), but the only reason i am considering this (incl my present 8fter) is becuase the middle of the room has two walls where joists cross over and are supported. My living room was once two rooms and these walls would have supported stairs and the upstairs. Thoughts though, is it adequate support? Joists (the ones i can see, appear healthy). 2x6 (doubled up). I have a picture that i could upload, but I cannot see the option to upload?