At that size, no. Give him another 6 months to a year. That said, green and turquoise severums are generally mixed heritage fish and can vary in adult color, so yours may or may not look like any particular photo. Years ago a severum was a severum was a severum for the most part, without distinguishing between or preserving the purity of different collection points or some of the Heros species recognized now. Also, the difference between a green or turquoise severum is often arbitrary on the part of a seller and what they want to call their fish, with no real difference between them beyond the usual variation of the mixed heritage fish in the hobby.