well acorrding to what that little chart says i would only need 1/4in cause the tank is only going to be 7in tall. but im going to use 3/4in just to be on the safe side, and plus im going to use plexiglass not acrylic
how much is it there for a sheet that is 96 X 30.i need one for my monster tank that is going in my basement.a 260 gallon.not to big but the biggest one garf will let me build.