BigPic - I heard ya loud and clear in the other thread and your statement about F0 meaning the parents and F1 the offspring and so no that got my wheels turning about the grading system. One could go on a collection trip and get perhaps 10 cichlids of the same species - who's to say you didn't just collect a few from the exact same bloodline -F0 mother,F1 daughter, F2 grandson, and so on. Then bring these same fish back to the US or where ever and breed the F2 with the F1 and F0. If this system is in place to track generations out of the wild then the F0 would be the collected W/C fish. On the other hand if the system tracks just the parental offspring of any pairing of cichlids w/c, multi-generational, or the incestrial pairing of adult brother/sister fry then the F0 value would be all but meaningless.