How many times a day do you feed a betta fish betta food?

once every day or 2, and just a small pinch

Siamese fighting fish? The pet store where you bought your betta will have food as well, probably freeze-dried blood worms. Feed your Siamese fighting fish two or three times a day, only what he will eat in a few minutes. Overfeeding will make the water cloud faster, and your betta will be more likely to get ill.

Oh btw, you should keep them in separate fish bowls. They're called "fighting fish" for a reason. They are highly territorial animals and will react violently if two are placed in the same container. You can see the preliminary phase of their fighting, the threat display, if you put a mirror up against the bowl. Notice the raised gill covers, which makes the betta look bigger. IF THEY FIGHT THEY FIGHT TO THE DEATH SO BE VERY CAREFUL U CAN LET THEM FIGHT IF U STAND THERE WITH A NET AND BREAK T UP AFTER A LITTLE WHILSE AND PUT EM IN THERE OWN SEPERATE BOWLS OR GET A DOUBLE TANK