The picture is hard to tell where the indent is but I’ve had bettas both male and females with either a small indent or a small bump so I’m assuming it’s normal If it is the indent I think it is
So, I joined the fish keeping hobby about a year ago. I started off with just bettas than tried a rainbow shark and danios(it didn’t workout well) so I moved on to an angel fish and guppies along with my bettas. My girlfriend however became interested in starting a community tank so we set up...