Black ick?

[coronarex]

Several weeks ago both of my clowns were covered in white spots. So I started a QT tank and bought some Copperband from Amazon. My QT has cycled and is ready for a WC. Now my clowns are covered in black ick. How should I go about treating them now? Also what salinity should I run them at? My QT is very simple, its 5 gallons, bioballs, sponge w/ airstone, korila pump.

 

[EmdeReef]

It does look like it in the pic and some types are resistant to copper if that's what you meant by "Copperband."You should start with a freshwater dip followed by prazi 2-3x with water changes in between after at least 24hrs treatment. Formalin baths work too, though tend to be harsh.

QT after the fish is free of it for ~2-3 weeks to make sure the cycle is broken. As for proper quarantine setup, simple is always good, for more info: https://www.reef2reef.com/ams/how-to-quarantine.232/