Since there's only 1/4" thick acrylic available around here and I want to build my own tank I was wondering if I should try to build something big, but not over 18" high. I want to be able to keep a bunch of Ps in it (like 10+) but not sure what kind of dimensions I should go with. I know if I go 6 feet long and 2 feet deep that it would be ~270 gallons. Should I worry about having those dimensions for the tank with 1/4" acrylic or should that be okay? I don't want to get it all built and then fill it with water only for it to bust and turn my basement into a lake. Also what kind of support should I be using?