No, they do not have teeth. They may nibble looking for food, but they cannot bite.
a male Betta will usually like the company of other fish but will fight or kill others of their kind also they might fight guppies cause they look similar to a female Betta.
becuse thay bite other fish
Some male betta fish are not as aggressive as others.
male
Yes. Betta Fish do change their coloer every now and then. Or if you have a male, he will change his coloer if hes chaseing a female Betta Fish. Or if he sees another male Betta Fish.
Np, but they will bite. Yes, they will fight to the death.
Male Betta's are solitary. They cannot be placed with other fish. That's why they are known a Japanese fighting fish. They will kill other fish for territory.
None are recommended if the Betta is a male.
yes
She breeds with a male Betta Fish.
No. Betta fish will attack each other no matter the sex.
No they cannot. But if you're planning on breeding your betta fish I suggest you don't let the male and female share a bowl all the time. Because the female may not be particularly nice to the male. By that I mean she'll probably bite at him and other things so just be aware of that. Hope this helps :)