The dimensions to the tank I am planning on building is 4ft wide x 4ft deep x 2ft tall.. it is approximately 230 to 239 gallons. HOW THICK OF "ACRYLIC" DO I NEED IN ORDER TO BUILD THIS TANK? Or is this not a smart build. I would have to be able to transport and move it through door ways; should i change the build? Also looking at a build of 5ft wide x 3ft deep x 2ft tall.. Which is aprox 220 gallons, Back to How thick of Acrylic do i need? Please help.