Male Bettas will begin making a bubble nest at the top of their tank. Females will begin showing faint dark stripes the length of their bodies.
If they are not too old and the female is ready, then they will mate.
It means they are getting ready to MATE
If it is a male betta, then he'll begin making a bubble nest at the top of his tank. It looks like someone poured soap inside it, but it's not soap, it's just your betta letting you know that he's happy and ready to mate.
He certainly is not smart enough to be able to tell your sex. What he is doing is practicing and getting ready in case a female Betta comes along. It is just a sign that he is in good condition and ready to breed.
No it means they are ready to mate and might even have eggs in it if there is a female in the same tank.
Yes
No they can't.
Yes all bettas can mate with other bettas. " regular betta fish" there are different types and they can all breed together.
When she's over 4 months old, she'll be able to mate.
Ur betta is ready to breed
to make more bettas
A female Betta in breeding condition will look plump and have a rounded tummy area.