They are about a year old...The female is reaching the size of a large male pure convict, around 5 inches. The male is around 8 inches, but his body is more like that of a young umbee or Mayan. The males clearly get larger than the females, as I can see that about half of the fry are about 1/3 of the size of the other half. I am assuming these size differences are due to their sex. But what their max size will be is unknown...unless someone out there has crossed the same fish and grown them out.