Wrasses in QT; not sure what I'm dealing with

Deinonych

New member
I seem to be having problems with a couple of flasher wrasses (P. cyaneus and P. mccoskeri) that have been in QT for three weeks now. They came from Diver's Den. They were very slow to acclimate. On day two, both were hiding and breathing heavily. I suspected a bacterial infection, so I started them on a regimen of kanamycin (Seachem Kanaplex). The next day, they were active and eating. I gave them a second dose of kanamycin per instructions on day four. They seemed to be completely normal and active, so I didn't give them a third dose on day six.

On day nine, I did a 30% water change and started them on Prazipro as part of my standard QT practice. No change in behavior was noted - still active and eating. Did another partial WC a week later and did a second round of Prazi. Again, no change in behavior.

On Monday (two days ago), my wife called me at work and said the McCosker's looked dead and was just laying in one of the PVC pipes. She reached in to pick up the PVC pipe and he swam away slowly. When I got home for lunch, the McCosker's was swimming a bit, and the Blue looked pretty stressed, but was swimming in place in the back corner of the tank. I figured the Blue got spooked when my wife reached into the tank. The McCosker's had what looked to be fin rot on his left pectoral fin - a cloudy fringe on the edge - so I started them on another round of kanamycin to be sure. The McCosker's ate when I was home for lunch, while the Blue did not. By evening, both were eating.

Yesterday, both were active and eating. Looked normal.

Today, both are hiding with their stress colors showing. Neither is showing any interest in food. Respiration is somewhat elevated. I gave them the next dose of kanamycin per the instructions, but obviously that won't take immediate effect, if in fact I am dealing with a bacterial infection.

Any thoughts about what might be going on with these guys? Ammonia is zero, SG is 1.025. I have a powerhead and a HOB filter, so gas exchange should be good.

[edit] Just asked my wife if she noticed anything this morning, and she said they were both out swimming when she walked by the tank a couple of hours ago. Now I'm really confused.
 
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No. Both were hiding in or behind PVC. When I got home for lunch, the Blue was swimming in place at the back of the tank in stress coloration, while the McCosker's was in a PVC elbow. Thirty min or so later, the Blue was in the corner behind a PVC elbow.

The McCosker's is out swimming around now, and he ate a few pieces of mysis that I threw in. I'm now wondering if something spooked them and is causing this response? The QT is next to my son's FW tank, and one of our cats likes to sleep on top of that tank, so maybe the cat jumping up scared them? I have black felt taped to the sides of the QT to block the light/view of the other tank. I know wrasses can be sensitive, but this seems very unusual.

On the plus side, the McCosker's fin is clearing up nicely.
 
The prazi should have dissipated by now. Last dose was Friday of last week, and feces from both fish appear normal. QT is covered. McCosker's is still out swimming, but a bit skittish. The Blue has moved to different PVC pieces twice since my last post, but is still hiding in stress coloration. Bizarre.
 
Quick update: McCosker's ate NLS pellets with his usual vigor. The Blue is sitting in one of the PVC elbows. He looks alert, doesn't appear to be breathing rapidly, and is no longer showing stress coloration. Maybe something freaked them out this morning, and the Blue is super-sensitive? Still scratching my head about these two. The really odd thing is that the Blue is the more dominant of the two normally. He darts and flashes at the McCosker's to keep him in line.
 
Sounds like things are going in the right direction. Is there light in the surrounding room for a large portion of the day? Movement in the room?
 
I hope so. I've had a bad streak of luck with wrasses and would really like these two to make it through quarantine.

There is light in the surrounding room, and the aquarium is illuminated during the day. It's in a hallway that gets some activity, especially this week with my son being home for spring break. Normally, the fish come up to the front of the tank when I approach. Maybe they don't like my wife and son. :)
 
Some good news to report. The Blue was out and about and ate well at mid-day. When I got home this evening, he was hanging out in a piece of PVC again. Shortly thereafter, he passed an unusually large stool. I think that was what was bothering him, because now he's back to his normal self, owning the tank. :)
 
Hikari mysis and NLS pellets (0.5mm), both of which they are taking well. I think the mysis was giving him problems. I don't have Nutramar Ova, but I do have Cyclop-eeze.
 
Hikari mysis and NLS pellets (0.5mm), both of which they are taking well. I think the mysis was giving him problems. I don't have Nutramar Ova, but I do have Cyclop-eeze.

Mysis may be an issue if it were not used to that. Nutramar Ova and/or frozen cyclop-eeze would be good nutritionally as it contains less fat.
 
An unfortunate turn of events transpired today. When I was home for lunch, the McCosker's was laying on its side between two pieces of PVC. Showed no interest in food. By the time I returned home from work, it had perished.

The fish had showed no signs of disease, and had been eating well. He was definitely submissive to the Blue, but I had never observed any chasing or bullying, just the odd "check" from the Blue every now and then. The Blue is doing great, is eating well and is very energetic.

Not sure what happened to the McCosker's, but I'll obviously continue to keep an eye on the Blue. Still several weeks of quarantine left before he graduates to the DT.
 
Yes, I intend to give them a call. I'm not expecting a credit, but I do want to inform them of the loss since this was one of the unique "blackfin" variants that they have from time to time.
 
Sorry about your fish. I am glad I read this because I was on the fence about quarantining my next purchase from divers den (even though I know better!) Now I will be patient and do the right thing.
 
Sorry about your fish. I am glad I read this because I was on the fence about quarantining my next purchase from divers den (even though I know better!) Now I will be patient and do the right thing.

Thanks. The thing to remember about Diver's Den is that most fish only spend about two weeks being conditioned at their facility, so that's not enough time (obviously, in my case) to 100% guarantee the fish will be healthy long-term. That's why DFS recommends quarantine for all purchases from them, even from DD.
 

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