This is a discussion on Rosy Red Minnow with Mask on? within the Freshwater and Tropical Fish forums, part of the Freshwater Fish and Aquariums category; -->
Rosy Red Minnow with Mask Vid1 - YouTube
rosyred with mask 2 - YouTube
So, I have this Rosy Red, whose helping me cycle ...
The rosy reds at my local store are pink or light brown, it could be a local color variant but its not uncommon for feeder fish to have odd marks from inbreeding as well as breeding with other minnow species so the black mask isn't normal but it isn't unthinkable