The spot at the posterior of the dorsal looks like a Tilapia spot to me, most young Tilapines sport it.
Here are a coulee examples to compare
There are at least
This Tilapia above was photographed in a canal just outside of Everglades City as were the group of cichlids below.
I also found Tilapia as far north as Sarasota, in almost every pond or waterway I passed.