i was just reading on how to care for baby snapping turtles (i read care sheets when im bored) and it says that you should not feed them gold fish because of copper sulfate...? i get my feeder fish from pet smart and i usually get goldfish because they are bigger than the minnows and both the same price. but now im worried that my little turtles are going to get sick from the goldfish i have been feeding them. has any body else heard about this or have any suggestions?