Until one dies. Soon. Please separate them!
Yes. I have 2 newts and a betta with them! I am typing beside them! They are fine together.
Bettas are dumb as rocks. If you put another betta, any other anabantid like a gourami, or any long-finned fish in with a betta, the betta will fight it because he will think it's another betta. If you put a short-finned fish in with your betta, they'll live together peacefully.
A fight involving Scots will last as long as the flight.
His last fight was against Ricky Hatton, he knocked him out in after 2.35 in the tenth.
An hour
There are half moon betta, delta betta, round tail betta, long tailed betta, crown tailed betta, king betta, and others I don't know of yet.
You can place a mirror in front of it and it will fight as though it was another betta. However if you keep the mirror in for too long your betta will get stressed out and die, so best not to do that.
Betta fish can be from 2 to 4 inches long when fully grown.
A Betta does not have a "nitrogen cycle"
A betta fish is anywhere from 1 to 2 inches.
He sits listlessly at the bottom of the tank. His usually long, flowing fanned out fins are clumped together. He shows no interest in food and does not flare at the sight of another betta. He is generally lethargic.
A female betta has very small fins with a long body while the male betta have lots of nice flowing fins.