fish dying - need help

[arvin]

Doing great!

From here:

to here:

Running fallow and having all fish in QT. This fish is developing HLLE it looks like. The remaining fish (the ones survived) are doing fine. I am battling ammonia issue in one of the QTs which is making me do WC every day. Other than that, things are progressing well. Not out of the woods yet, but I believe the worst is over.

 

[Angel730]

Gald that they're doing well. Yike ammonia problem in a QT tank no good. Try some Seachem Prime (or Safe it the same as Prime but powder form), helps to control the ammonia and nitrates levels.

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[arvin]

I am told that Prime could be fatal when mixed with copper treatment. I am relying on daily WC for now.

 

[Angel730]

Ah okay. I usually treat my fish in separate container for copper treatment and then bring them over back to the QT tank.

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[arvin]

Ok. I am doing copper treatment right in the QT tank.