Please be aware that I got F1 fernandezyepezi from Rapps when he offered them a couple years ago, and despite all the water changes, heavy filtration, varied diet, etc. they still got bad HITH and nothing I did seemed to slow it down. We treated them for hex but it did nothing. The fish grew, were very active, ate well, and were otherwise normal, but the pits on the face continued to grow and spread. The only thing I did not do was soften the water or lower the pH. I kept them in the mid 7's. I don't think I'd try the fish again unless I had soft, low-pH water.
I have no doubt that the F1 stock was healthy, it just didn't appreciate my water.
I wouldn't even touch the wild stock, and almost every fish in my house is wild-caught. I've heard too many horror stories. They are similar to altum angels... the wilds tend to crash and are very sensitive when acclimating.