Any blue mollies in the wild?That's totally normal. The blue is a wild trait that does show up in certain breeding forms. So, nothing to be worried about.
A lot of mollies in the wild have blue in them which is more visible when the light strikes them. Take a good look at a socalled green sailfin. It does have a blue shine when the light hits the scales. I'm also keeping other wild molly species. They look grey but when the light hits them, you see a blue shine as well. In breeding forms it's become more enhanced.Any blue mollies in the wild?
Imagine a 5 inch blue sailfin molly