Thanks to Jon for getting this info!
And thanks to ming for the idea
if done slowly over a period of time it wouldnt bother the fish at all. the reason you want the salinity that low is that saltwater parasites love, you guessed it, salty water. there should be no real debate. sure there are treatments but the natural cures work best.i mean lets be serious, parasites, bacterias are always present in the aquarium. It only shows it self when the fish get stressed and their chainlink armor breaks down leaving gaps for those tricky parasites to appear. happy fish are healthy fish. as far as a tang showing signs of ich, no surprise there, is a common occurance amongst tangs. call them canaries of the ocean. but than again maybe im just too old school.
Chief, why not make this or another "ICH" thread a sticky on the front page since alot of people dealing with it are always asking how to deal with ich? Just a thought.....