while the Black molly is a hybrid based on Poecilia sphenops. Molly jaws can protrude forwards to make a sort of scraping tool ideal for rasping algae from plants and rocks. While omnivorous in the ...

Of them however, Mollies are very good, and of the mollies the true black molly, Poecilia sphenops is the best of the bunch. Often available these days with a slight lyre tail. One of the best algae ...