unclenedsfishfactory.com

Hello thought Id post a few pics of my Scarlet Badis,aka Dario Dario.
I was wondering if anyone else that has them has encountered the black patches like the one in the first pic has on his head.I dont know if it natual for them or if its a fungus or something I should be concerned about. A few of mine have the spots on various parts of their bodies.It doesnt seem to bother them at all.