Just wish to share what i went through during cupramine in display tank with liverocks
things happen during my treatment
1) Alot of die off inverts (snails,bristleworms,crabs,tube worms)
2) Fishes lose appetite some even stop feeding
3) Fishes get freak out easy even with their own shadow
4) Even after dosing the right level of cupramine ich will takes about 3 to 5 days to disappear
5) I was required to dose 5 times the actual amount need for cupramine (it was due to the liverock absorbing cupramine)
6) You will need ammonia alert(seachem) to look out for ammonia as normal testkit are affected by cupramine
7) Cupramine is a stressful process for the fishes hence I did alot of water change during the treatment to try to keep the water pristine(this help my achillies tang to feed)
credits goes to
digiman
bigbird
orsony