Only one farm to visit. This farm claims to breed the fish you want and can prove it's their fish produced with a chip.
It's breeding season and you would see the broodstock, hopefully the whole process. Not worth a look? Or are pulcher ID difficult to confirm even as adults?
I'll send you a private message later. I'm looking to visit Thailand to find specific species fish breeders. If you know - have visited lots of farms, that would be useful. Even if you speak Thai & interested in monster fish, that would be helpful.