Prety premium coloring on that clarkii. I think she may be a "melanistic" clarkii, which is what they call them when they have black anal, dorsal and pelvic fins and NO yellow on them at all. Sometimes there's a little yellow tinge on the pectoral fins and tail but they are ideally transparent white. I saw a beautiful large melanistic female going for $30 at an LFS in SoCal.