My brown tang suddenly died today without warning and now I see a dust like film on some of the other fish. I’ve set up my hospital tank and have copper treatment
Royal gamma
Tri color blenny
2 clowns
Dwarf Angel all seem to have this
Tips?
While posting video, use bright white light intensity and no blue, and dust appearance suggests Velvet- given its name. If velvet, you will want to set up a quarantine tank for treatment and treat with Coppersafe or Copper Power at therapeutic level 2.25 for a FULL 30 days (do not interrupt this 30 day period) monitored with a Hanna Brand copper test kit- No API brand. Also monitor Ammonia levels while in quarantine with a reliable test kit and add aeration during treatment using an air stone. All other fish in with it should also be removed as they have also been exposed to the parasites and placed in quarantine tank.
The display tank will have to be kept fishless (FALLOW) for 6-8 weeks to assure the existing parasites go through their life cycle without a host fish and die off. Inverts and coral can remain in the display (not treatment) tank during fallow period.
A quarantine tank can be as simple as a tank from a second hand store, a Rubbermaid type tub or a starter kit from Walmart which most of the needed essentials.