Here's something I can say about PS.. I have some youngsters in my tank and they love pellets. My smallest specimen is about 1.5" and took right to optimal #3. This is a wild-capture from a guys netting efforts up north that agreed to try and ship. He's shipped me 3 fish now and all are pellet eaters. The other 2 are a bit larger-maybe 3.5" and they hammer Optimal Jr until they look like they swallowed a marble. This tells me growing them should be very doable.
Now I need to learn to sex them for obvious reasons..lol