My molly has a big bubble growing under him

Question
Hello,

One of my fish has a big bubble grown under him. It looks
like an air bubble. Is this a gas bubble disease? Does not
look like what I read on the internet. Can you please help?
What should I treat him with? No one in the aquarium has
this problem.

Answer
Hi Darshan,
  Is it out of his anal opening?  Sometimes fish get what is called a prolapsed intestine which basically means that the lining of the intestine protrudes out the anus.  Is that what is happening?   (Sadly, I do not know of anything you can do to treat this condition).

-- Ron
  rcoleman@cichlidresearch.com
  Cichlid Research Home Page <http://cichlidresearch.com>