Thanks for all of your help
You're very welcome. OK, there was nothing on hardness, but they do advise that soda ash is added to raise the pH and prevent corrosion, which is exactly what I expected. The water is therefore very soft. And checking the map for Spada Lake which is their/your reservoir, it is west so again soft water.
So, back to your initial question on suitable fish...almost any fish from South America and SE Asia will be fine in your water. This includes the characins (tetras, pencilfish, hatchetfish), most catfish (Corydoras, plecos, etc), SA dwarf cichlids, rasboras, danios, barbs, loaches, gourami. Lots to look at. Of course, after we have the water parameters settled, you then need to decide if you want an active or sedate community; the two do not mix. Fish that are active swimmers which includes pretty much all of the danios and barbs do not make good tankmates for sedate fish like gourami, dwarf cichlids, to be obvious. Rasboras are generally quiet fish, more cruising than active swimming, and the characins have quite a variety.
Just to pin this down further, all the fish you list in post #1 are on the sedate side, so if that is what you like, you should find other species with similar habits. And there are many.
