Ich on boxfish

[hermitcrab]

Hi, I have a ich problem on my yellow box fish. Tried freshwater dip last night, end up today worst, more spots. may want to try copper treatment but have not setup my quarantine tank. Read above the hypo treatment, but i am afraid the fish cannot take it and die and poison my whole tank.

This few days it is not feeding so garlic method may be abit hard. I was thinking, does the cleaner shrimp help to remove such ich?

[hermitcrab]

Hi, have anyone tried introducing Aquapham Cure ich into the main display tank, any harmful effect on the crabs or snails?