I don't understand why no bonnet head pups? If they get too big, take them out, but Wouldn't that be perfect for a couple years? and what about BTR sharks?
Yes, they are too large (even as pups) for something like this. We wanted to put in animals that will thrive their entire lives. Catching a shark out of display like this is not easy, and something most clients wouldn't want to see. Also, bonnets tend to snag their eyes on artificial coral/structure in a display, so you need to work with them in large open areas for months to acclimate them to not only tank life, but swimming around obstacles.
If you want to see what eye damage on a shark is like, check out this old black tip reef shark thread (heads up, eye injury pics are kind of detailed):