Couple shots of my RD here i know everyone has said male on this guy in the past but thought I would throw a few new ones up now that he has developed more. Hopefully still male as im devoting an entire tank to this one fish. If theres any doubts I can get some vent pics up.
I'm leaning towards male on this one eve though it has a flower on the dorsal. A vent pic is the only way to know for sure if you can post one up. Just looks a lot like a male to me.
looks female regarding on the dorsal spot but it does look like a male, venting will be the best.. and one more thing your's is a zhen zhou not a red dragon .