I have vented mine and have been told by another person that mine is female. Unless mine has a very unusual vent it is a female. I have also seen 2 what I thought were red severums is a large community display tank that had fry. It was around 3 years ago but I'm almost certain they were both reds. I guess one could have been a gold displaying a good amount of red and I just didn't pay close enough attention or I could just remember incorrectly. But I don't think so. I'll try to net mine this weekend and get a decent vent picture so we can be fore sure. But it's certainly not pointy or angled back. With line breeding who knows though!