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Copper and Tang in QT. Need advise

newfly

newfly

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I have a 2" purple tang in QT since yesterday. Started with 0.8ppm copper power and API General Cure. Tang is stressed from shipping (overnight becomes 2 day) , but otherwise looks OK. Started eating pellets and mysis soaked in selcon today. WIll add Nori tomorrow.

I increase the copper to 1.2ppm today and the tang is not happy. Hanging out at the top of the tank, sideways. Quickly do a 50% water change and he is back to normal. I am mixing another batch of water, and can do another 50% tomorrow if needed.

Some sign of white discoloration (see picture). Not sure its from stress, or HLLE or ??

I'm very afraid to add copper now. Any suggestions?

QT is a 13g bare bottom with PVC . The tang is alone in QT.
 

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Chromis said:
What QT method are you following - how are you reducing ammonia? Did you add anything besides copper that could have made the copper more toxic? Something like described here?:
Click to expand...

QT is cycled, with matrix and sponge as biological filtration. The fish just got introduce yesterday. Ammonia is 0.

I added General Cure + Copper Power. Have been doing this for the last 3 batch of fish.

Maybe tang is a lot more sensitive.
 
If you lowered the copper and he eats then maybe he's sensitive to copper. Humble fish mentions it here (at the very bottom): https://humble.fish/copper/

I normally match the copper coming out of the bag and then I would increase it slowly. Especially after a long transport!

I don't know what HLLE. I am a noob too.
 
thanh510 said:
If you lowered the copper and he eats then maybe he's sensitive to copper. Humble fish mentions it here (at the very bottom): https://humble.fish/copper/

I normally match the copper coming out of the bag and then I would increase it slowly. Especially after a long transport!

I don't know what HLLE. I am a noob too.
Click to expand...
Thanks. I didn’t check the copper level in the bag. I started with 0.8 and went to 1.2 in 24 hours. Is that fast?

I’m very afraid to increase copper again. Might just observe the fish for a week without meds and see how it goes.
 
Does anyone here have spare copper solution. I have 3 fish with black ich that i wanna cure. Just wanted to ask before i ask the main group.
 
Take your time.
Let the fish get over the stress of shipping and so on for a week or so.
Then treat when they are eating well.

I have heard a few anectodal complaints about copper and tangs, but I have never heard solidly that it is a problem.

You could try ionic copper (cupramine) instead.

Or use tank transfer method, or hyposalinity, that do not use poisons at all. But those only work on ich.
 
markovkaa said:
Does anyone here have spare copper solution. I have 3 fish with black ich that i wanna cure. Just wanted to ask before i ask the main group.
Click to expand...
For black ich you want to use Praziquantel since they are actually a worm parasite.
humble.fish

Black Ich

Black Ich - Turbellarians (updated 6-9-2023) What You Need To Know: * Parasitic flatworm infestation. Tangs/surgeonfish are most often afflicted. * Primary symptom is small black dots on the fish. (Not to be confused with Clownfish Hyper-Melanization.) * Best treatment is Praziquantel. A...
humble.fish humble.fish
 
I might just try some fresh water dips see if that helps. But maybe I will try Praziquantel. It’s only my clown fish that have signs of black ich.
 
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