As it seems, you may have got a variant of P. nagyi. I already thought so (but remained silent about it) seeing picture 2450. Now, the male does not show really the typical courtship colours, but somewhat getting in that direction.
There are some variants of nagyi living at the ast coast of western Malaysia arould Kuantan, Cherating and Pekan Nenas. It’s really a widespread location and the variants differ in many respects. To determine your fish more exactly, we need better photos. But one thing is typical: The white band in the caudal fin. It’s typical for some variants of nagyi around Kuantan. However, it’s not the typical Kuantan, since they have definitely a shorter caudal fin. Maybe it’s a Pekan Nenas or Chukai-variant.