One of our goldfish was found outside of the pond, on the ground and the cat was sitting next to it, playing with it. We are not sure if the cat fished the goldfish out or if it jumped out, as the pond was very full due to recent rain.
The fish was put back in and seems healthy, but could have minor injury that we cannot see, as we have not examined him/her, just allowed her to swim and relax.
When I fed them the next day, one of the fish was bumping the other one out of the way when they fed (and I cannot tell which is the one that had been out of the pond). This used to happen when there was a larger fish in the pond with them and this larger fish has subsequently been put into his/her own pond.
This just may be a coincidence in the timing with the out of pond misadventure, but I know birds can peck at an injured bird. Can the same thing happen to goldfish.
Could this bullying bumping behavior be the result of being injured perhaps?