a fat betta fish
They look just like Big betta fish, but smaller.
it looks like they have a big bubble in their side
Betta dish actually don't sleep, or they'd die.
They look all gooey ang have a wierd coat around them
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.
They Get there names buy the people that found them or how it looks like....Like betta means fight and that is why too....
I am not sure but it could be a certain type of Goldfish or Betta. I think you know what a Betta is or you could look it up. Betta fish are called Siamese fighting fish so that makes sense in a way. You should look up "yin yang fish" because it seems there is truly such thing that people talk about. Maybe you meant yin yang but there seems to be very little information on yin yan fish. From all the images of this yin yan or yin yang fish it looks like either a Goldfish or a Betta.
Bettas are originally from Thailand. Although, they don't look as beautiful and colorful as you would see them at your local pet store. In the wild, they are brown or black and have short tails so they look like slugs.
No. Male bettas can be kept in community aquariums, but should not be kept with fish that look anything like they do, or are small enough to eat. A male betta will mistake a guppy for another betta and kill it. Female bettas, however, can be kept with other "betta-like" fish without a problem.
A male betta has a long flowing tail while a female has a short tail
Usually, they won't have big beautiful tails. They have smaller bodies in general also.
Betta are the best for you.They look awesome and are friendly