This is my favorite female betta I have in my collection, simply because she has nice form with good coloring and won a local show here in the Philippines on November 28-29,2020. As a betta breeder I decided to breed her with a male and it was successful, and I was able to grow them to adult size. I did a second breeding attempt after a month after her first breeding. Before attempting the 2nd breeding session I already notice the belly not getting large despite me feeding her plenty of food to prepare for the breeding. I decided to continue on with the 2nd breeding but it was a fail this time. The male and the female were both injured with some fin damage. after that failed attempt I decided to just keep her as my personal pet betta for 2 months.
I set up a peaceful sorority tank that has been thriving for months and it came to my mind to let her join the sorority tank. So I placed her in the tank with the other females. A day passed, I went to check my sorority to see if she has adjusted, and to my surprise it was not a pleasant sight, most of my females have torn fins and nips on their tails and I see her in a corner building a bubble nest and guarding it. I removed her immediately and placed her in her original solo tank. And it got me wondering why was that her behavior, so I googled some potential answers until I came across an article that is about artificial sex change in bettas. In the experiment they were able to artificially sex change the female bettas to males. at this time I already observed that her belly never got big again from the first breeding until now. It was weird because it is always common with female bettas to produce eggs and have larger bellies. I theorized that my betta is no longer a female a betta. So to confirm my theory I decided to breed her with a female (Third Breeding) on August 08,2021.
A day passed after placing them in a breeding tank and there were eggs in the bubble nest.
And here is the best part, the eggs hatched!!!! and as of now (August 10, 2021) it is taking care of its fry.
And that got me surprised that my betta sex changed to a male
I just want to share this to the world that a female betta can change its gender to a male but with minuscule chance of it happening.
I'll post its updated picture after it is done taking care of the fry.
Let me know your thoughts about this. If you are confused and surprised after reading this, you are not alone.
THANK YOU AND GODBLESS.