mucus? Doesn't ring a bell. Fish generally have what is called a "slime coat", which protects them in the same way our body oils protect us.
From the food it eats.
If any Microorganisms get into our lungs it gets caught in the mucus and is then carried up into our breathing system by the cilia, it is then swallowed and killed by the hydrochloric acid in our stomach
you will choke and die
They are produced in there because of mucus then dust gets in there and it hardens
Ploysinusitis is the simultaneous inflammation of multiple sinuses. What causes this is that mucus gland gets blocked, but the gland keeps making mucus and cannot drain out. The mucus will then stretch the gland and creating a mucus filled cyst.
Infectious agents, small aerosol and dust particles are trapped in the mucus elevator to prevent their invasion in lungs.
Betta fish get in fights with fish with colorful fins and bodies. If your betta gets in a fight while your away,the weaker fish may die. But if you see your betta fight with another fish you should try to split the two fish apart [or all the fish that are fighting].
It dies or it gets better. Depends on if you treat it or not.
The bodies first defence against a virus is your skin. The body first defense against a virus is Mucus. Mucus
We swallow about a gallon of mucus a day. Dust and bacteria are in the air we breath and gets filtered into mucus. This is why it is healthier to breath through our nose.
If the female is chubby around the tummy area you could add her but be prepared to remove her if the male gets too boisterous. If he starts building a nest then you know you are in with a chance.
Kawaskai disease tends to strike children