Same, I'm picky. I don't think the farms intend on breeding arowana with PLJ. I think the goal is to breed a fish that has perfect color, shape, scale structure, fin structure, and overall with no defects. Yet the battle for one good trait, may bring out a bad one from time to time.
Often you can't tell with fish of young age, and sometimes it straighten itself out. That's why young fish are drastically cheaper then perfect larger fish.
Just because a fish doesn't express this trait, doesn't mean it isn't hiding the gene. Traits can go unnoticed for generations and then come out of no where. That's just how genetics work sometime. I feel it would be much to difficult to weed through every fish to get rid off all the ones that potentially may have PLJ, or the genes for PGL. It would also be a very costly cull.
As hobbyists, if we want a perfect fish we gotta pay the money. If not, we take the risk. It's always important to educate yourself on the farms and variants you choose to deal with. Some variants naturally have certain defects (reds are less likely to fully colour up then any other asian arowana, and are often more likely to get PLJ). Fish coming from Pang Long and Xien Leng are generally higher quality then those coming from CV Maju. However CV Maju fish are much cheaper for that reason.
JMorash
