concrete tank

[Biomatic]

what should the viewing pane thickness be if its a circle tank that is 15 feet 5200 gals

 

[CANAMONSTER]

I'd do 1inch glass

 

[BIG-G]

How deep? Glass or Acrylic? both are very important when trying to determine thickness.

 

[Drstrangelove]

Also, thickness depends on height and to some extent the width of the viewing pane. (Narrow viewing panes can get away with thinner glass than a single wide one.)

Can't determine that from what was posted.