All Mollies will eat some forms of algae, but not all types of algae. Not sure they will eat hair algae. If they do, I don't think it would be one of their favorites.
The black molly is so popular because of its striking uniform color compared to the other strains , & it's ready availability.
The black molly is so popular because of its striking uniform color compared to the other strains , & it's ready availability.