Bill, that’s very good news indeed!
I recommend to all who read this: Take this opportunity and get some of thesewonderful fishes. But mind: Especially P. opallios, parvulus and even spec. Sentang are no fish for the unexperienced. These species demand the full Parosphromenus-program. They are no fish for the normal community tank where they will simply “disappear” if accompagnied by fish which are much more agile and dominant. And they definitely need demineralized water with low pH (4-6), otherwise they will get ill by Oodinium.
Less demanding are filamentosus and linkei. I strongly recommend to all who would like to try their first Parosphromenus to take one of these two species. They are wonderful, not difficult and will delight you. Take no less than 4 to 6 individuals; in both cases the sexes are easily determined by the long filaments of the male caudal fins.
Both species can develop to brilliant small fish, and both are relatively easy to spawn. If you take such a group you should pobserve them some weks in a small tank with no companions or some Boraras spec. only. Use very soft water with a pH below 7.0. Put some very small caves in it. Then you will see the spectacular beginning courtship behaviour.
And if you see it, you should separate that pair to a very small new tank filled with pure rainwater or osmosis water. Add a Catappa leave at the back glass and 10-20 oak leaves on the ground. The pH must be definitely below 7.0, somehow between 4.5 and 6.5 in order to mnimize the germ development.
Additionally, you must start some food-cultures; I recommend Artemia and (for the very young) Paramecium or vinegar eels.
Use much Java moss and Ceratopteris at the top swimming.
More experienced aquarists should defiitely have a try with the first three species. You never knwo whether you will have the opportunity ever again. But mind: P. parvulus is really tiny. It must have a small (!) tank for its own. Then you will see that spectacular courtship behavior, with that zig-zag-dance which is as speedy that you will not able to follow with your eyes.
For the beginner pure rainwater is a good alternative. If you can raise Artemia naupliae from the cysts then you have a good food, at least as basis. Additionally you can feed small (!) mosquito larvae that can be easily produced in containers (Buckets etc.) in the garden.
Don’t hesitate! Take the opportunity! These are heavily endangered fish. Maybe, you will see them not for long a time.