An easy way to tell if it is a Festae or a Mayan is that the true festae will have at least 1 pair of vertical bars that form a 'Y' near the head of the fish and the Mayan will have all vertical bars on it. Also, the eye-spot at the base of the tail on a festae will be smaller and will set up higher while the spot on a Mayan will be much larger and centered on the base. I thought I was buying a Festae once but got a Mayan.