in my view it would always go back on, how sure is the breeder himself that the fish he had are L066 ? Maybe with so many squiggles he also bought a breeding pair of mixed Ls as that is what they were told. There is no doubt that say L333, come in various colours now and also different squiggle markings. Some L333 breeders either like the yellows or white. The same for the L066 . If I were you, I would split the colony to fish you think are L066 and then the others. Maybe we are all wrong and they are L066s with different markings. Some Ls only show their correct full markings at maturity. It is hard. Maybe go back to this store and ask to see the parents. maybe they put in their fry raising tank other Ls as well. sorry cheers jk :thumbup: