Female beta is a murderer.
The male will try to spawn with her. If she is not in breeding condition she needs to hide to stay alive.
It means they are getting ready to MATE
I assume you mean vertical, not verdical.The rectangle has 2 vertical lines, and 2 horizontal lines.
stripes indicate comfort and or mood, horizontal mean scared or not happy, vertical means happy and playful and can also indicate willingness to breed in the female, no stripes at all means quite content with surroundings. Just from personal experience.
It probably means that your female (girl) Betta is a male that has not yet fully matured.
Vertical lines usually indicate bonding tab issue, the screen would need to be replaced
hi this is the anwer
my pregnancy test positive result should be vertical but is horizontal
It means he hates you. Bettas flare their gills out when they're trying to scare another betta away, or to impress a female with how large he is.
Do you mean female and male? If so, then the female betta fish is smaller and less elaborate than the male.
Those are parralel lines.