Wrasse not looking good in QT

[HiImSean]

I picked up a female 8line flasher 2.5 weeks ago and a male royal flasher 1.5 weeks ago. Both have been doing very well in QT, eating well, getting along ok with each other. I doesed prazipro on Sunday, I fed Sunday afternoon and on Monday, both were just as good as before. Yesterday when I got home around 4pm, the royal is hiding in some PVC inside a mucous cocoon. The female is just fine. I fed a little, she ate like normal. Today the male is still inside the PVC, I don't see any mucous, just the wrasse, still breathing but kind of heavily.

The QT has never had medication besides the prazi, has a small canister filter, some Sechem Matrix that was in my DT sump until they were added, a air pump to add O2, and a few pieces of PVC. I'm thinking to go ahead and do a WC even though I haven't completed the prazi treatment and maybe try again this coming weekend with the meds. I was following procedures that were posted here since it was my first use with prazi and I was a little nervous. Any ideas?

 

[38bill]

Have you checked for ammonia?

 

[RJT]

+1

Even if you overdose prazipro it won't kill a fish, its not toxic like copper. When was your last water change?

 

[HiImSean]

I didn't check ammonia but I'll assume that's what is was.

I did a waterchange just before dosing on Sunday. I ended up doing another last night and the royal was lookin a bit less stressed immediately. Even came out for some pellets.

 

[formsix]

Sounds like you might have figured it out. I was also going to suggest keeping an eye on the salinity. I'm in the middle of a QT right now, and for some reason (dry air, heat, whatever) the water in my QT tank is evaporating at a much higher rate than usual, and I'm adding top-off water twice a day to keep the salinity from creeping up too high. Just another idea to toss out there, though ammonia would be my first thought.