Poo look like hot dog links

[Enki]

I have a wrasse in an acclimation box in my tank. He is eating like a pig and I was going to wait another 24 hours to release him into my display. I noticed though some of his feces looks like a string of dark hot dogs, not white and stringy.
does he have an internal parasite? I had him qt for a week he appears: healthy, eats well and looks great.
I did not medicate or treat the wrasse in qt.

 

[Deinonych]

What are you feeding it?

 

[Enki]

pe mysis and LRS

 

[Deinonych]

Without proactive treatment it's impossible to be sure the fish doesn't have parasites. However, stringy white feces are indicative of an internal parasite, not dark solid ones (typically).

 

[Enki]

I have Prazipro should I try to soak food in Prazipro and feed directly to the box?
While the wrasse is in the box I have to feed the box directly anyway.

 

[Deinonych]

If you are going to treat, it's better to do so in a QT. Prazi will make your skimmer go nuts.