if his scales are sticking up like a (pine cone) call petsmart or petco and ask them about it
Tiger Barbs (Barbus tetrazona) are egg layers and do not get pregnant.
Under normal circumstances the female Betta looks and is smaller than the male in both body and finage.
it looks like they have a big bubble in their side
If the betta is spitting the food out, or looks at it and then ignores it, it probably just doesn't like that kind of food. They're picky.
the Betta or Siamese fighting fish
Well she sure looks pregnant !
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.
I am guessing that you are refering to the "Siamese Fighting fish" Better (more acurately) known as a Betta splendens. They do not have live young and so can not get pregnant. The male builds a nest of bubbles and looks after the eggs and fry in there until he decides they are capable of hiding and fending for themselves.
when the stomach looks swollen or a little red and a little fat
The pregnant cheetah looks much like other pregnant cats.
Yes. But they don't really fly. They jump out of the water and it looks like they have wings.
She looks large