On any given day, we build more tanks by lunchtime than some of these backyard cowboys do in five years. We have more acrylic aquariums in use than anyone. Our tanks last forever. Back to the thickness hen fight, below is a pic of a 96x30x48. It is a pic of a pic because it was taken pre internet, built in the early 90's for PetSmart. We are the company (and me personally) that designed and built their store systems. We built dozens of those big tanks. They finally stopped using them because of worker's comp liability issues. Store employees had a tough time cleaning and servicing them. Do you notice any bowing or flexing. You don't because there isn't any. None. Zero. Nada. Zilch. We don't build big tall tanks like this very often because we try to talk people out of them. Often they don't know what they are getting into. BTW, do you have door clearance to get yours inside your home? Sometimes people overlook little things like that. Building a tank with 1-1/14 inch thick walls is dang difficult, even for us and we have cranes, lifts and numerous other material handling equipment. Again, I want to see at least one of these unicorn tanks, 72 inches and 30 tall made out of 1-1/4 inch. They don't exist. But...if one does it's like wearing a football helmet to bed every night cause you might bump your head on the nightstand. I am not out to diss anyone here. But when comments such as some of the above are made by people who have never even built what they are claiming to be experts on, it is directly impactful to us and our reputation. All the best.