ok, while back i wrote about my free tank, it is an odd size. i forgot exact dimensions but is is 72'' long. anyway it turns out to be 120 gallon. Its an older tank with euro bracing. So how do i get a lid for it. I of course will get exact mesurments before i get a lid. but most tanks have the brace were the lids slide right in; I hope you know what I am talking about. the euro as you know is a thick glass piece, how do I get a lid for my tank. the glass has no groove or anything to slide a lid in and it hold it. If that makes since.