string of poop

Greetings R2R family, I got this pair of golden maroon clownfish a week ago. I've noticed that one of the clownfish is not eating well for last 3-4 days. Today I saw white stringy poop with it. I've read that it can be internal parasites. Can anyone please help identify if it is internal...

Sorry if the photos aren’t the best but the little bugger won’t stay still! I took on this pair of clowns and the female keeps having really stringy poop but the male is completely fine. She is still eating and behaving normally so I just wondered the best way to treat her or whether to just...

I noticed a yellowish/brown string hanging out of my coral beauty today. I'm assuming it is poo. Is this a sign of internal parasites or some other type of infection? Or does the string of poo have to be white to signify an internal infection??