Over a month now and only one guess, so time to give hints. Ivanacara bimaculata is not far off at all. Although it is not common, this fish is in the hobby and has beeen around for a long time now (my brother had some in the early '70's). Might be a different regional variant or is exhibiting some coloration and markings you don't usually see on most pictures of this fish. But it's eye color gives it it's common name.