Originally posted by logen32
when you have ich in your tank you have to quarentin all ur fish right?
I'm not sure I understand the question.
If you have ich in the tank, you have to assume that all the fish and the tank are infected and treat them.
Quarantining fish (removing them to a different tank) will allow the tank to become ich free (as long as there are NO fish in the tank) after a month.
The quarantined fish still need to be treated. Hyposalinity seems to be the preferred method of treatment. It worked for me.