Very good, dear Deepin’ Peat. Please go on breeding parvulus. There were years in which we thought to have lost the species. And in case of such a fish this means: possibly for ever. Try to enlarge the small tank population and find a cooperator in your country. It was an exceptional situation that Helene discovered parvulus being traded really. That was one incident, it may never be repeated. Although parvulus, as we know now, is in nature not as endangered as many others of the genus (because of its bigger region of locations), this is by no means secure terrain. And whether there will be a second trade incident is completely uncertain.
Congratulations, and: Make it a second time.
Peter