What fish are these??

[nsrjones]

Hi all, I have a small garden pond which was supposed to be a wildlife pond. About a year ago I purchased some plants online from two companies to put in the pond, a few weeks later I noticed tiny fish in my pond that I didn't put there. I tried to work out what they were when they were young but couldn't decide. Fast forward a year and I am still none the wiser. There are four fish in total, all different sizes, originally all four were a shade of browny/black. In the last few months one of the smaller ones has turned fully orange, the other three have stayed that shade of browny/black with a white belly, showing no signs of changing colour. So my question is , what are these fish?!?!

 

[BKHpondcritters]

Goldfish. Must have had some eggs stuck to the plants you bought.

 

[j.w]

and welcome @nsrjones
Yep sometimes it can take a long time for goldfish to turn orange. I have had them stay dark like that for years and then whamo they start to change to orange, sometimes white or a peachy color but mostly solid orange ones. Enjoy your free friends