I lost three fish in QT last night.

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Are you talking about the frayed posterior portion of its dorsal fin? If so, I don't see any white dots. I'd keep an eye on the fin and be prepared to treat with an antibiotic if it worsens, but it will likely grow back in a few days.
 
I'm not the biggest anthias guy, but I do sometimes see them looking splotchy like that. [HASHTAG]#reefsquad[/HASHTAG] for more input.

Is he breathing heavy? What other symptoms (even behavioral) are you seeing?
 
Can't get a head on. I put him in a 5gallon bucket for TTM. I doubt he will make it till morning.

Behavior is lethargic. Laying on the bottom. Lost appetite this morning. It's not anthias blotchy. This is new. They appear to be missing scales and there are red marks on his sides that are today new. I lost three other fish almost without any signs. They're further back.
His rear fin is quite tattered. It's not from fighting.
 
@Fenzinna My "best guess" would be velvet, based on the symptoms you are describing and how many fish you've already lost in QT. And you said in your OP that a FW dip showed no flukes. o_O

Here is how I treat fish with velvet: https://www.reef2reef.com/threads/velvet-amyloodinium-ocellatum.217570/#post-2499437

That protocol will treat all external parasites (ich, velvet, brook, uronema) if followed precisely. FW dip + chemical bath + 30 days in either copper or CP.
 
The 'blotchiness' that this guy is showing is not normal for anthias. It certainly seems to be damaged, whether that came from injury or a pathogen, I can't tell, though I would treat following humblefish's recommendation for velvet.
 
Ammonia is first on my list here. Followed by the possibility of an infection or uronema. I have a difficult time with both infections and uronema with anthias at the store. They come in with these things and start dying after a week of being (i thought) fine.
X2 those fish appear seemingly healthy and even have all of their color almost. I think velvet or other diseases infecting the gills is possible but they would lose more color typically IMO. Could be ammonia and velvet, and since you didn't treat with copper or CP that actually would make more sense.

Initially I thought against velvet but the more I think the more I may agree with humble although typically fish that die of velvet are far less "attractive".
 
X2 those fish appear seemingly healthy and even have all of their color almost. I think velvet or other diseases infecting the gills is possible but they would lose more color typically IMO. Could be ammonia and velvet, and since you didn't treat with copper or CP that actually would make more sense.

Initially I thought against velvet but the more I think the more I may agree with humble although typically fish that die of velvet are far less "attractive".
This was the male. I thought ammonia too but three died same time. Stop eating the morning before. He wasn't dead this morning but I doubt he will make it.
 
If you have a microscope, you can do a scrape of that white patch, wet mount it and examine it for pathogens.
 
I was gonna give a shout out to 4ford but was too late. I see he already posted lol. I was thinking velvet as well but the last photo took me by surprise. Thats an interesting white blotch....im leaning more towards lymph
 
Agreed. My guess is its something bacterial in nature.
Thank you for your help.

I've read over some of your articles and they're very helpful. I know prophylactic treatment is personal choice but assuming that prazi took care of worms or such, would you recommend treating with a gram negative immediately after even if no symptoms arise?

On this round of QT, I didn't do tank transfer. I simply got everyone eating well, dosed prazi, and then that's when all the fun began after the second round. Now, I'm sure secondary infections could have caused the timely demise of three fish along with neglect to water conditions.

Can you point me to an article you've written about QT methods that include recommended treatment patterns without symptoms?
 
I've read over some of your articles and they're very helpful. I know prophylactic treatment is personal choice but assuming that prazi took care of worms or such, would you recommend treating with a gram negative immediately after even if no symptoms arise?

I only suggest using antibiotics prophylactically if no other meds are present in the water. Unfortunately, antibiotics are the harshest chemicals we use on fish and also deplete the most oxygen. So, combining an antibiotic with copper or prazi should be reserved for emergency situations when there is evidence that a parasite (or worm) PLUS a secondary infection is in play.

Can you point me to an article you've written about QT methods that include recommended treatment patterns without symptoms?

I'm not sure if this is what you're looking for, but check out "Option A" and "Option B" here: https://www.reef2reef.com/threads/how-to-quarantine.189815/
 
Unfortunately, antibiotics are the harshest chemicals we use on fish and also deplete the most oxygen.

Not to derail this thread, but can I ask where this information came from? IME, antibiotics are not particularly harsh on fish, and their pharmacokinetics typically do not rely on redox but rather interruption of specific bacterial processes (e.g. aminoglycosides inhibit ribosomal protein synthesis).
 

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