Chloraquine phosphate treatment

Hi everyone! I have an update. I am at a month of treatment, and today the queen angel has spots again. No other signs of distress. The tank was warmer than usual, 84 degrees for some reason. Every other fish looks fine. Treatment tanks stink.
 
Hi everyone! I have an update. I am at a month of treatment, and today the queen angel has spots again. No other signs of distress. The tank was warmer than usual, 84 degrees for some reason. Every other fish looks fine. Treatment tanks stink.

Is you CP dosed correctly? Is it pure?
 
If the tank has a sweet aromatic smell, the CP has denatured. The odor is very noticeable when I run UV after treatment. Did you run your lights while treating?
 
No lights, just dim ambient light, no odor noted, I dosed with prescription CP, 40 mg per gallon. The spots do not look exactly the same, this time. The fish looked like a salted fish previously. They are larger and more prominent, not fuzzy. No visible respiration issues, no hiding, some twitching. There is a lot of nipping going on. I wish I had a Microscope. Thank you for helping me figure this out guys. I really appreciate your input.
 
I have tried to get a picture but they do not show the spots. I'll try again later. It has been suggested from Bob Fenner that I do a freshwater, or formalin dip on the angel and place her back in the DT. I regretted not placing the long nose butterfly back in the DT. I do not want to lose this beoved angel. The DT has only been fish free for 4 weeks. I feel so torn.
 
I have tried to get a picture but they do not show the spots. I'll try again later. It has been suggested from Bob Fenner that I do a freshwater, or formalin dip on the angel and place her back in the DT. I regretted not placing the long nose butterfly back in the DT. I do not want to lose this beoved angel. The DT has only been fish free for 4 weeks. I feel so torn.

While Bob Fenner certainly is more knowledgeable and more experienced than I, putting the fish into the DT after a formalin dip seems a bit reckless. If the fish still is infected with crypto, a formalin dip is not going to cure it, and a f/w dip certainly won't. I'm not sure I understand his recommendation.
 
His opinion is that it is not likely crypto, but another ailment, brought on by the stress of a small tank and aggressive tankmates. His suggestion was to return the fish to the larger tank in order to provide the best possible environment to allow the fish to heal.
 
Interesting. Personally, I wouldn't put any fish in my DT with an unknown ailment. Hopefully you can get a good picture of the fish to help with diagnosis.
 
What's the size of the spots? With the dip recommendation, I expect Fenner is thinking flukes are a possibility, which could be. A FW dip would make it obvious when they fall off, however, I'd still be leery of putting a potentially infected fish back in the DT. If you can get a decent pic, that would be an enormous help.
 
thanks to you all! I just checked on the fish, and the angel looks great. NO spots at all. Yahoo! right? I know..not really. :( It makes me believe that the fish does have crypto. What do you think? I think redosing the tank is the right way to go but I am not sure. All the fish are eating, no twitching noted, no rubbing, no other visible spots on the fish, no hiding, eating NLS, Krill, Mysis. I am so frustrated. I wish I had microscope. The real scary part is that I will be unable to care for the fish for for a couple days and going to have family check on them. This is disastrous timing. On a good note ammonia is still undetectable in this tank.
 
How many days did you run the last treatment, and how long has it been since that treatment ended?
 
The tank is a 30 gallon tank, but actual total volume is 28 gallons. The first dose was March 15 @ 40 mg per gallon, then all the rest fish were added the next day. March 25 I did a 25 gallon water change with water dosed with 40 mg per gallon. That was the last time I dosed the tank. I just had an epiphany. A few days ago the pump was drawing air and it raised the temp to 84 degrees. I think it is possible that the parasites (theronts) emerged due to the temp and salinity fluctuation, and by then the CP had lost its efficacy. Seems plausible to me.
 
A few days ago the pump was drawing air and it raised the temp to 84 degrees.

Could those spots have been air bubbles, either stuck on the slime coat or subcutaneous? Air drawing into a pump on the intake side can lead to gas bubble disease, which can appear has bubbles under the skin. If the fish is looking clear at this point, I'd go for just keeping water quality stable and observing closely. Any signs of spots that look like ich, give another round of treatment for 20 days.
 
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