G'day all, I have a pair of 4" Humphead cichlids in a 24 gallon tank, that they share with an Albino, a Peppermint and Orange spot Bristlenose. Then 2 weeks ago the male Humphead lost all pigment, turning the almost exact colur as the Albino Bristlenose, he stayed that colour for the next day or 2, then returned back to a dark greyish colour, except for a patch that circles his mouth, it has remained like that since, yet he seems healthy, no laboured breathing or anything, he still eats, water conditions are good and the female with him has shown no case of the discolouration. Any feed back on why this has happened and what he is suffering would be great, thanks
