Quarantine + Cupramine vs Blennies

[WuHT]

Now quarantine tanks are a safe preventive measure to observe your fish, and if spots are found, cupramine is a good way to rid of ich/velvet and other parasites. The thing is,... I have read that being scaleless fish, blennies dont' do good in copper'd water.

So the question is..for all the blenny owners, how did you quarantine your fish ?