Originally Posted by aquagreen
I think I'm scared of the idea of purchasing a marble now that I've learned this about the colors changing.
Don't be scared! Most marbles stop changing once they hit maturity. Out of the 8 I've had, they have all changed color a little, but not so much that they completely lost any certain color or that they didn't look like the same fish I fell in love with. That's all I buy anymore and haven't had any issues. So I think you'll be okay. It does happen occasionally, but not every time