Here are two of the three greshakei's I have. They are all juvenile at around 2-2.5". I am not sure when the males come into their customary "ice blue" coloration but the fish in the top portion of the photo definitely has more blue than the other two (which appear all brown) as can be seen in the photo. This is a dark blue however, so I am wondering if this is a male and when should I expect the change?