I just wanted to say thank you for the great article. As the fish ages and becomes larger, the ovipositor tube will become larger and easier to see. Move the female betta to the male's tank or move the two fish together to a third tank. It is located between the near the edge of the ventral fin near the head of the Betta. Observe the size and shape of their fins. I would be glad to share photos of my fish,past or present if you ever need different examples. Any chance you could share a photo please?
Clearly, you have no idea what you are saying.
How to Tell a Male From a Female Betta Fish
Some females do occasionally make nests better than some of my males. Thankyou for your offer, at the moment I'm in no need for photographs, but thanks for your generosity! That picture for the thing you call "egg spot" which btw is actually called an oviduct, is not of a male Betta. Also, the mirror test was a good one. Females can also have long finnage, and be just as aggressive as any male.