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- Dec 17, 2017
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This actually happened to me. They said they ran copper, but I didn't ask what level. In a day or two velvet sign of swimming into powerhead. A few days later even in copper, both PBT and blue tang dead.I would also inform the place (a LFS?) where you got the two tangs. They may have a latent infection that is kept at bay with non therapeutic level of copper (I hear it’s not uncommon), their next customers will be grateful to you.