Originally Posted by ccCapt
The only med that will kill ich is copper. If you use copper, your tank can not have any live rock in it or any sand in it.
Actually, Chloroquine will kill Amlyoodinium, Cryptocaryon, and Turbellarians. The trouble with hyposalinity, from I've heard, is that Velvet seems to spread much more quickly. Double-edged swords these beasties are, getting more difficult to kill even with medications.