This is always a sticky situation whether it is Tangs, Angelfish or other Marine Fish that we keep in our tanks. Personally I have no problem with someone who buys a very small fish, keeps it for a year in there tank and then when it out grows the tank sells it here on MAAST or at a fish store. If I have a choice between purchasing a wild caught or a fish from someones tank, I take the fish on consignment everytime.