saltwater fish have ick

Question
we have a 90 gal saltwater tank. its been together approximately 6 wks.  we have 45 lbs of live rock and 14 fish.  we just noticed that they all have ick to a degree, some worse then others. we also have a 10 gal hospital tank with a "dory" fish in it. she got ick as soon as we got her home.

so what would be the best way to treat this. we have invested a lot of money and do not want to loose all our fish and rock. please, any advice would be appreciated.

thanks, Heidi Clear

Answer
heidi

In that case what you could do is remove about 20-30% water and replace it with a fresh water, but do not empty your tank, this could put lot of stress on your fish and they may die soon. Also clean your tank, using gravel cleaner. It would really help to add additional aeration with an airstone and airpump too. If any problem get worst let me know.