the bubble is to help it breathe
spit
They bubble because if they didn't they would die.
well its simple 1. blow a bubble that is small enough to fit back in your mouth 2. then put it back in your mouth ( make sure you still have a bubble) 3. finally just push your tongue to the roof of your mouth and your bubble will crack
Diameter of water bubble?
I think the hot water bubble flies fastest than cold water bubble.
I would do a water change. What it seems like to me is the fish has a blister or abscess forming on its mouth/lip. This is usually caused by poor water conditions.
it depends upon the level of water which produces the bubble. when there is less water,the bubble acts like a lens
gather spit and open your mouth.
A water bubble is made of air. If you remove the air from it it will not be a bubble anymore.
you open the pack then you put it inside your mouth chew for 20 sec then blow the bubble
well its simple 1. blow a bubble that is small enough to fit back in your mouth 2. then put it back in your mouth ( make sure you still have a bubble) 3. finally just push your tongue to the roof of your mouth and your bubble will crack