Difference between gold/dark common goldfish

[jay24]

Just trying to understand why some of my commons are gold, while some are dark like a common carp. Will they remain this color, as some seem to have gold coloring with dark patches. What's up with this?

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[Cactuspixie]

It's just the normal variation in colouring. The only goldfish I ever had that changed colour were my moors.

 

[jay24]

So baby commons that are gold or black will stay that color until adult size and the same for gold variety with patches of black?

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[jlk]

So baby commons that are gold or black will stay that color until adult size and the same for gold variety with patches of black?

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Unlikely they will stay the same color. Any juveniles that turned black from the original wild type color of fry, will likely turn gold/orange with time. Goldfish with patches of black will also likely lose the black 'patches' with time as well. Orange/gold babies may eventually turn white. Color is not static in goldfish (particularly darker colors) and they may undergo various color transformations through out their lives.