Tank Disaster

[MMAX]

Originally started a thread about my Kole tang with what I thought was white spot. Read what was posted if you want to find out what happened. I recently lost a dragon goby and yesterday my Kole passed on. I'm sad to report my pair of clowns might be next. I have a marine velvet outbreak. I just finished setting up a hospital tank for them but it may be too late. This afternoon I checked on them and they were covered. Hopefully the medication will work but I'm not overly optimistic. So far my lawnmower blenny and zebra darts show no signs but I'll have to get them out and into treatment ASAP. I'm pretty sure the Kole must have brought the disease with him into my tank. From now on everything that goes in will be quarantined first. Is it true that after all the fish are removed the virus will die because there are no hosts? How long does this take? Any other advice would be much appreciated.