Emperor angel with prolapsed colon

[FishyMel]

Hi,

I have had my emperor angel for 3 years. Sadly, I introduced a yellow belly dogface to my tank (after a 5 week quarantine) and I think it still must've had an intestinal parasite that didn't show. Now, my angelfish has a prolapsed colon. He is eating fine but getting itchy due to the stress of it all. Does anyone know if there is a way to treat the worms or the prolapsed colon?

 

[screwsloose]

there are several metro based food on the market that you can use. are you sure its not constipation? is there any white stringy poo?