It’s difficult to tell, but I do not think it’s gunawani:
1. The single male in the last picture seems to have the bright hyaline band in the dorsal fin rather close to the edge of the fin. Whereas it is quite typical for gunawani that it has this band lower down, and above – between that band and the narrow whitish line at the edge of the fin – a rather broad brownish-reddish band, which appears similarly on the anal fin. Unfortunately, the anal is nor realy to be seen at this photo.
2. The left male on the first photo might have that broad hyline band lower down, just as it is to be seen in the typical gunawani; maybe it’s an illusion because of the bad photo, or there are several fish mixed. This one at least could be gunawani.
3. Another typical feature of gunawani are the rather short ventrals. The colouring is quite allright, but especially the last shown single fish seems to have ventrals that are a bit too long. In typical gunawani the filament is not longer as the fin itself, perhaps a bit shorter (see our picture in the species section). This seems to be a bit longer.
But the determination is difficult with these photos. I think it’s not gunawani. I had them myself before.
Peter Finke (20.02.2014)