Yes, we have some goldfish that have stayed black for two full seasons. They get 4 or 5 inches long and then suddenly they turn orange.
We have a range of Shubunkins that take their time to change from black. Some change earlier than others. Our largest blacks are now 20 cm long and 2-3 years old. We've also found that if the water is warm for a longer summer, they change faster. We are also careful to add some new breeding stock to the pond every year and try to give away some of the existing fish, that mixes up the gene pools more.Good morning!
We have some volunteer fish that have grown this summer to nearly the size of an adult man's thumb. Some of them have begun to show signs of the typical goldfish orange hues, but others are still black as coal.
Our fish are just comet and feeder fish mutts. Nothing special. What's the longest you folks have seen younguns keep their dark colors? I'm just surprised they haven't all turned yet.
I just noticed tonight that I have a solid-black fish that grew out of this Spring's babies, which is about 3" long. I've never seen any all-black before now (except of course the babies under 1") so I'm hoping this one survives the Winter. The closest I've had before was one that was black except for an orange streak along its underbelly, but unfortunately it must have gotten picked off this Spring before I had a chance to get any size to it.
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