Seachem makes a product called metrodiazole which is a product that you add into the food. You also add there product called focus which binds the medication to the food. Completly reef safe with everything as i have 2 anemones and lots of corals and inverts and they are all fine. I have used this several times in the reef and in a quarintine and it takes care of any sign off ick in about 2 weeks...
Here is a link to the meds:
http://www.seachem.com/products/prod...onidazole.html
Craig