Ah, I didn't think of the glass needing to be cut. As for breaking though, with that much pressure behind it just about any crack or weakness will result in a blowout.
I'd go with the 2" acrylic. Better to spend a bit extra for the safety margin IMO. A big fish striking the window may be the straw that breaks the acrylic camel's back if tolerances are close.
I'd go with the 2" acrylic. Better to spend a bit extra for the safety margin IMO. A big fish striking the window may be the straw that breaks the acrylic camel's back if tolerances are close.