I'm not sure why my previous post was deleted, but allow me to rephrase it and be more specific.
Your fish is a hybrid.
The fish that this breeder is going to be breeding & selling are also all going to be hybrids, and from his track record apparently selling hybrid CA cichlids doesn't seem to bother him.
These fish clearly have something in their genes besides Paratheraps zonatus, and from your recent pics those genes appear to be from Lake Catemaco fenestratus. These fish may have been sold as "pure" wild caught P. zonatum, but other than to those who now own them it's rather obvious that they are anything but.