Help I think my clown has an Intestinal worms/Internal parasites

[eb_reef]

I added a pair of clowns 10 days ago as my first fish to my reef tank. One of the pair had a string of poop attached to him. At the time I didn't think much of it. That same fish wasn't eating as well as the other. Yesterday I noticed him breathing heavy and now he's hiding at the bottom of the tank.

I check the post for fish diseases and the picture of Intestinal worms/Internal parasites looks like what he had fits everything but mine isn't eating well.

I am getting a QT tank ready and picked up some medication. Should I move them both to the QT tank?

My tank is a 30g bio-cube. I started my cycle towards the end of May taking things really slow. No ammonia or nitrites. Salinity 35 ppm

 

[Humblefish]

Was the stringy poop white?

 

[eb_reef]

It's was stringy and very thin. More transparent than white to me

 

[Humblefish]

It's was stringy and very thin. More transparent than white to me

If he isn’t eating well, I would treat with API General Cure in the QT. That contains both prazi & metro.

 

[eb_reef]

Ok so I moved both fish to a QT tank and started the API General Cure treatment. Today I noticed that the second clown (one with a black face) has the same stingy thing coming out of his belly. It has been there all day today. I was able to grab a photo of it using burst shots. It's hard to see so I added an arrow to highlight. Is this an Intestinal worms or parasite?

https://imgur.com/a/ZDKFGON

 

[eb_reef]

I finally got a good pic of the stringy thing and just noticed a spot on the side of his mouth maybe gills, I'm not sure.

Please help!

 

[Humblefish]

Is that white stingy poop coming out of his anus?

If so, he has internal parasites or intestinal worms: https://www.reef2reef.com/threads/internal-pathogens.267419/