IMO jenaro herrera have been an under the radar fish, rarely available in the US and little info on them that's readily available, especially in English. Not many have ever kept them and from what I've seen some who get them might start a thread to try and get some information but don't get much, and then hardly anyone follows up to document much about them long term. Similar to diadema and metae in the US, only more so.
(Metae and diadema seem to be better known in Holland, Scandinavia, etc., I'm guessing some of that may be the influence of Alf Stalsberg, maybe also Sven Kullander, who seems to be known to hobbyists in that part of the world similar to how Ad Konings is here. Or maybe a simple matter that other fish have been the hot fish in our market in recent years-- red head severums, super red severums, red head geos, 'electric' this and that. There was a time when metae were better known/more popular here simply as yellow acara.)
On the other hand there's been a degree of recent buzz about stalsbergi. But I doubt stalsbergi will have same impact as gold saum green terrors. We've actually been through that cycle before and it was gold saums that took the hobby by storm, not stalsbergi-- by whatever people may have been calling them at any particular stage, whether "true rivulatus", "true green terror", etc. Not that I'm an authority, but I'd predict stalsbergi basically stay in a niche rather than being a fish in big demand. You'll get those who will prefer stalsbergi, but I just don't see the average hobbyist saying 'wow those are so much cooler than gold saums'.
Jenaro Herrera, don't know-- beautiful, but how often will they be collected, or will they ever be bred enough to make much of a splash in the market? But it's a fish I've admired and wanted quite a while, (just have to decide if this is the right time, or which way I want to go with my available tank space-- jenaro herrera, metae, winemilleri geo or something else?). But they're on my list, while stalsbergi don't excite me. I've had a lot of green terrors, gold, white, wild, domestic, even had an odd looking white edged terror years ago that may have been a stalsbergi, don't remember it well enough to say. But I don't see stalsbergi as different enough from what I've already had to get that excited about them.
Not trying to give advice what to do, just my personal take on it.
