Hello guest! Are you an Apistogramma enthusiast? If so we invite you to join our community and see what it has to offer. Our site is specifically designed for you and it's a great place for Apisto enthusiasts to meet online. Once you join you'll be able to post messages, upload pictures of your fish and tanks and have a great time with other Apisto enthusiasts. Sign up today!
I agree with Mike. Imo your fish might not even be a macmasteri-group species, it could likely be an eunotus-subcomplex species, e.g. one of the A. cf. eunotus forms.