Garlic does not cure ich. It only helps the fish immune system, you will still have ich in your tank.
Knowing your enemy is the key, I agree. Understanding the life cycle of parasite is crucial.
Other forums to check out are:
http://www.reefcentral.com/forums/sh...hreadid=167243
and articles:
http://www.petsforum.com/personal/tr...marineich.html
www.reefcentral.com has a great forums on disease and different kinds.
Let the force be with ya!