My Caudis are the reticulatus type. There is the wild type, the reticulatus and the auratus. The auratus type has both yellow/gold males and females. The reticulatus type has the yellow/gold males and greyish/goldish females. I have never seen them revert to the wild type which is a grey fish in both sexes with a singe black bar in the center of the body. I have tried to get the auratus type but so far have had no luck. My friend in Denmark got some from Germany but they died and a guy in Los Angeles had them but they stopped breeding for him.
Which edition of Exotic Aquarium Fishes do you have? Is it an Innes edition or a TFH edition?
Sometimes the people who sell monties and nezzies on Aquabid.com will show great photos of each.