i know this thread is OLD ... but jozefj is a great person to deal with, i picked some up from him a few months ago
and to the person saying they wont eat floating pellets, i disagree ... they may not take large floating pellets, but i feed mine small pellets, i think they are tetracolor ... and some sink and some float. my sturtgeon have no problem flipping upside down and taking them off the surface, and the same with frozen bloodworms