Absolutely tilapia mariae. Mayans at that size are tan with a reddish tinge and bold black bars, along with a more pointed muzzle. This tilapia species is like a bumble bee, with black bars on a greenish yellow background and a much more rounded face. I catch both by the dozens here, but prefer the intelligence of the Mayan. Used a baby tilapia to catch my Oscar "Fugly" lol.
But this is definetely a tilapia
home of Fugly the Oscar (ACA)