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I know Ogons are metallic, solid color fish, but my friend recently gave me his platinum Ogon, and within about a week, it's solid gold now. It's a butterfly and I don't have any butterfly Golden Ogons in the pond, only a single Butterfly Platinum Ogon which is bigger by a few inches. I suppose my questions is: Can Ogons change color? I know certain water parameters can change the patterns and colors on a koi, but I never thought it could on an Ogon...