just like how Butter and Lesser have their own categories, some people (mainly breeders) like to know exactly what line of genes they're breeding. i myself have been on the look-out for a male Coral Glow, as Spaghetti is a Coral Glow and i'd like to stick with the Coral Glow line, but when they're listed as "Banana/Coral Glow" on MM i get frustrated!!!