I'm gonna say male also. It is the size and color of a juvi that could go either way but i believe with the lack of black anywhere on him like dorsal fins or the pelvic fins, make it a male.
I'd say male too for the same reason as listed above, I don't see any dark markings anywhere on his fins. I've sexed a lot of these guys, I'd give say I'm about 90% sure it's a male, there's always the odd surprise though.
It's too soon maybe looks male now but at that size they can literally change overnight. My female looked just like that and a week later she look like this