I did not know there were other varieties or are they locations ? I am particularly enamored of this fish . The yellow coloration is nice and also the cross hatching lines between the scales across the body . The thing that I like best is the large dorsal fin . It will be a real treat to watch them spawn as the male wraps his dorsal fin over the female while she lays her egg . I have two brine shrimp hatchers set up now . My guentherii fry are eating well and the new fish prefer live to frozen . I can’t get a good picture of the rachovii because all they do is race back and forth . They never sit still unless I’m out of the room . I know that because I spy on them from a distance . But still I try .