I bought a pair of dragonface pipefish recently and I'd really like information on what to look for so I can determine their gender. I've searched all over the web via google with barely any results. What are the visible reproductive organ differences? Any pictures or links to informative sites to sex dragonface or network pipefish would be greatly appreciated.
Here's one of my pipefish, notice the little black spot protruding out from its belly. (shows up as blue in the pic) Male or female? The other pipefish I have has a dark spot in the same area, but it doesn't stick out like this one does:
Here's one of my pipefish, notice the little black spot protruding out from its belly. (shows up as blue in the pic) Male or female? The other pipefish I have has a dark spot in the same area, but it doesn't stick out like this one does:

