From what I have been told the males have worming between the eyes and the females just plain turquoise face. Mine is a female and has a plain turquoise face with no worming. I am pretty sure she is a female because I have just added what I believe to be a male red spotted gold (he has worming) and he is displaying mating behaviour to her by slapping his tail in her face and vibrating around her. I have called them Rhubarb and Custard lol.