Good job, Kotzulla!
Not to slate Ruinemans, but I’m sure they won’t see the difference between bintan and gunawani. I have quite some experience with Ruinemans, and they just sell fish with the name the exporter gives them. It could as well be a pack of Orinoco dolphins, and they would still say they’re sure it’s gunawani. In a seller’s tank, even an expert would not be 100% sure about a paro’s species.
@Peter Finke
When I bought my sumatranus a few days ago, I saw some very stout-bodied bintan-like fish, with much shorter, rounder fins and a different colouration. Does that match with gunawani‘s appearance? If that’s the case, Ruinemans’ fish could well be the real gunawani!