Clown Fish question. Big poop or parasites

[pepito113]

I have a clown fish for approx. 2 months. It has been healthy with no problems. Yesterday I noticed it didnt want to eat and was not swimming right. Today I woke up and there Is a white long string like thing hanging out where I would belive it relieves it self or its openinng down there. Its About 1" long and the fish is about 2" long. What is going on here?
I did some research and some say just change the diet. Some say its parasites and need to be in QT and treated. How do I know?
And If I place her in Qt what meds do i use to treat it?
Does the other clown that she hangs out with go to qt to be treated also?
Do I need to do something in my display tank?

 

[sepulatian]

What were you feeding this clown? What do you mean that she wasn't swimming right? How was she behaving? Don't drop the fish into a QT with meds for what is very likely a large defication. Parasitic worms are small and are seen on the body. If this is a parasite then it is darn long and you would have spotted it in the tank long before it got a chance to attatch to your fish.