Releasing goldfish in a pond?

I would ask what sort of pond, and where. If it a pond on your property or a friend's property, than fine, otherwise not. Releasing non-native species is a bad idea. I have a goldfish pond, if my fish get out, they die. Don't release into a pond in a park or other public space, or into a natural waterway. You have the non-native species factors, the chance of putting disease into a natural habitat, and the prospect of putting pets on the predator menu.

 

I there are any other fish in there, they will get eaten in a heartbeat. We have a pond just for our goldfish and some are almost 6 inches long now. All started as carnival fish and we just threw them in the pond.

 

If you put them in a pond and protect them from predators within a year they will grow up to a foot. I'll never keep goldfish in a tank now I have seen how they can grow. The pond needs to be big enough to keep the water fresh, or heavily planted, or filtered though. Goldfish thrive in a pond.