Whats wrong with my fish ??

[janalta]

Correct....you don't want to run carbon while dosing with medications...but I would definitely start once you've finished the treatment.

What size is your tank?
Looks like a 55 from the pics.....might want to either add another powerhead, or change the existing circulation around to get better flow going.
Wait until you fix up with water changes, meds, etc and adjust flow once you see what happens

[FWC]

Only a 33 gallon


Also the female anthias does not look to hot ,here are some pictures from this morning.

[janalta]

Looks like she's developing white spots...not good.
Can't tell for sure if it's ich or Velvet.....do you have a knowledgable LFS nearby you can take her to ?
Treating for parasites in your tank could mean death to all inverts and corals...but you may not have any choice at this point.
It also means not adding any more livestock for approx 6 months after all signs of it are gone.