We don’t know whether it’s a koi or a goldfish. We have three koi and seven gold fish. We think that two of the koi are male and one female. (We’re just guessing based on size.) We have no idea what the goldfish are. But yesterday late afternoon, Edlyn (my wife) was cleaning out the filter net when she found the young one in there.
Any tips for helping to ensure its survival among all those big fish? He’s about two inches long by her description, and the largest koi is probably 14 inches or so. I don’t think any of them can eat him, but they do go at rocks for the algae, so I’m wondering if they could sort of chew on his fins or something and effectively cripple (and therefore doom) him.