Plywood tank with glass viewing question

[Epic Fabrications]

This is my concept for an 8'x4'x2' tank

The idea is four 6"x6" that will make up the corners, and 2x8 stacked, running along the sides. It will be sitting on a stand with 2x8 stringers(beams) every 12" oc, and the tank itself will have a 2x4 bottom to it, 10" oc, running perpenticular to the stands supports. The ends of the sides will be through-bolted and everything will then be lined with 3/4" plywood, then sealed, and painted with dryloc.

This will be a grow-out tank for the Pacu, Oscar, Bala, and Barb.

My question is; I currently have 6 pieces of 24"x24" glass which is 1/2" thick. The light blue in my concept is the glass. There is no such calculater for this kind of set up. The tank will hold approx. 480gallons. Should 1/2" be okay braced in such a way?

A thickness calculater told me that a tank of this size would only require 1/2" for an entirely class constructed tank, and that was the higher recommended safety standard. Opinions? Thank you.

 

[Epic Fabrications]

The purple looking 'things' going across are 2x8's just for a little more structural stability.

The advantage to the size is;
-it is just large enough to be movable, and can fit through doorways.
-plywood is standard in 4x8 and 4x4. Therefor; this project would only require 2 sheets of 4x8 ply, and one 4x4 to make up the ends. 10' 2x8's will make up everything else...

 

[Lil_Stinker]

The thickness calculators, even thought they speak of a solid window, should still be followed, as the water pressure will be the same as a single pane.

Your wood dividers in the front will be weak spots. hopefully someone will have recommendations on the minimum width & how to strengthen them.

 

[Phixer]

The height of the tank is what determines your window thickness. If is only going to be 24" tall you will be fine with this design and .5", any taller I would recommend using external vertical posts between your windows, and cross bracing from front to back. Some say this cuts down on lighting so you may have to use pendant lights. A vertical post exoskeleton and crosbracing will minimize bowing and give you a rigid tank.