The male Betta does this because he can. He doesn't know if or when a female will come by, so to be on the safe side he keeps himself ready to impress a female if she does turn up.
Female Betta fish do not make bubble nests.
They can come either as male or female.
It probly is a female
it looks like they have a big bubble in their side
Place a female in close proximity where he can see her.
The male will make a bubble nest when the female is about to lay her eggs.
A bubble eyed gold fish is a fish
You put them together when the female is full of eggs, and when the male builds a bubble nest.
A male beta fish blows a lot of bubbles. so if there are a ton of bubbles at the top of the bowl or tank, your fish is most likely a boy.
The word fish is without gender. It can refer to either male or female
they can. but it is VERY rare. usually you would see a bubble nest.
gulp* bubble* bubble*