I have read that goldfish and other types of fresh water fish are not good food to feed. What if they were used just as a supliment to a much larger diet? What about earth worms i have kept large freshwater fish for years feeding different types of food but useing earth woms just as a quick feed or a snack. Could the same be done with saltwater? Is there any danger to the fishes health? I havent done this yet just an idea, a way to extend the amount of food i have to feed. It would also be a cheap way to fill there bellies. Like i said i havent done this just a thought for discussion.