Just ordered my new custom tank from SC Aquarium. ITs going to be a peninsula build with a 16"shadow overflow on the left side. The tank is 60 longx24deepx20high. About 125 gallons roughly. So my question is I have made my stand 64 inches long, tank will sit over the 4 legs which are 4x4s. I put braces 9 inches in from the left side and 9 inches in from the right side. do I need a center brace if the opening is like 40ish inches with no brace? I know its confusing. Ill take a picture of it when I get home too! Basically what is the max span with 2x4s I can go with no center brace.