I plan on purchasing a 240 long tank from glasscages. I have hread alot of flak about them and not having a floating bottom. so i was wondering about biulding a frame for it to make it a floating to maybe avoid the breaking problems that others are having. i just would like to know if this is a good idea or to just not worry about it and use styrofoam under it and call it a day.what do all you MFKers think?