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Nemo2007

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Okay, I have a purple fire fish who was doing fine until I added a tomini tang. The tang never chased him but he always hid whenever he saw the tang instead if eating. The tang, at best guess, eventually succumbed to a tail wound and died. The fire fish went back to normal behavior and was eating well.
Now the fire fish has been transferred to a new tank in advance of adding a new tomini tang to the old tank. He was doing fine with his new tank mates, a black ocellaris, 2 chromis, and a starry night blennie. Since every one was doing well, I added a larger standard ocellaris from the old tank which the fire fish was already accustomed too.
The fire fish stopped eating again. In fact I had to put him back in the quarantine tank. I'm not sure he's going to make it and I'm not sure what's going on. The larger clown fish did develop skin lesions after transition. I thought it might be a bacterial infection caused by the stress of hastily taking him from the old tank to the new without full acclimation process.
All fish were quarantined 28 to thirty days prior to making it to either old or new tank. In fact, have owned larger clown fish, six line wrass, green chromis, and purple firefish from 6 months to 2 years.
As far as the newer fish, copper dosing was lowered for tomini tang, starry night, black ocellaris, and chromis to avoid complications with tang.
Do you think it is possible I have an ick or velvet problem instead of tank agression problem in new tank? - or some other pathological process?
The thing is the new fish tank seemed fine untill I added the larger clown. I have since seen questionable lesions on the smaller clown that healed. Now there are a few on the smaller chromis. All other fish are eating though the smaller clown does not eat as much as before. Any advice is appreciated. Considering rounding up all fish in new tank for new quarantine.
Water parameters at last testing Ammonium=0, Nitrate=0, Ph=8.0, Ca=360, Phos= 0, Spec gravity 0.0246.
I have included a few pics below of larger clown. Lesions are between the last two white bars headed towards the tail. I hope you can make them out.
 

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Len

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Your clown could have introduced some disease to the tank that is effecting all the other fish. Clowns really are terrific carriers of disease, and I recommend you maintain a quarantine tank to monitor any new fish for a few weeks (and perhaps medicate the QT tank).

I'm not sure what you can do at this point except hope for the best. If disease(s) was introduced, you can't remove it with medication since it's the main display tank. Fish can heal and diseases can go away with time, but it's up to your fish's immune system now.
 

Nemo2007

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Thanks for the input. I thought I might not get any input on this issue.
Since the clown has been under my care for an extended amount of time with no ill affect. I'm beginning to suspect that maybe one of the newer fish that were quarantined in the presence of less copper than I usually use was infected. Since the only fish the large clown was initially exposed to was the new tang, he is my primary suspect. I believe, when i moved the tang over to the new setup, he shared whatever he oicked up with the others and the firefish is taking the brunt of it. The only problem with this hypothesis is all the fish in the old tank look fine and are eating well, including the tang.
 

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