since monterey bay was the first to keep great whites alive in captivity for an extended period of time with some degree of sucess, the other fish in that tank, which included some tunas, and some other more commonly kept sharks could have been relocated just for the one or two great whites, and just keeping those 2 and watching them grow in there, would draw in much more interest, sales, media frenzie and the rest than the rest of the fish.
all the other sharks, tunas, and mackerals in there, have been kept before, as well as in other aquariums, but not great whites. if anyone is listening, this is my honest opinion.
the first 4 footer, I drove up over night to see it in person, and it was just a baby, but imagine if they had let it grow, that was 3 years ago, by now, it would probably have reached over 10 feet, and that would be an incredible site to see.
I know they've released some of the other fish, such as the mola mola that had outgrown the tank.