I thought this was a joke question..
lol
but it's a real one.
If you bought them as Festae fry and they look like that at this stage, there is a high chance they are it. Because that's how festae fry look like at that stage.
But that's no confirmation. The fish will need to develope more because of the Mayan cichlid possibility. U know how those two get mixed up by ppl.