hey brandon - i went with 3/4" glass all around. i highly recommend it for a large rimless. btw, none of the manufacturers are perfect, but in every possible way Derek at Miracles has stood behind his work. this is not my first Miracles tank, and price was not my primary consideration. if price *is* a consideration, Miracles is a no-brainer. Starphire is clearer than the Elos "equivalent" and Miracles builds large rimless shallow tanks like mine (70 x 60 x 22) with a single bottom piece of glass reinforced with a "bottom eurobrace".