they're actually being bred, I've imported them from time to time, and they're stocked in lakes in thailand. However, datnoids pulcher, are not being bred, cannot be bred, and practically extinct in the wild, and but they're not listed on the critically endangered list.
Are there different endangered species lists? From what I see, datnioides pulcher is also listed as critically endangered:
http://www.iucnredlist.org/details/180969/0