What else is in your tank - what fish and what inverts? A number of people, including me, think the next step is to treat with PraziPro (2-3 rounds of treatment) for flukes/worms. As Reefing Newbie says, that can be done in your display tank.
I would continue to offer frozen mysis, frozen and live brine (frozen brine enhanced with spirulina will be good), Rods and nori. The fish should start eating, particularly after a couple of days of PraziPro so get right to treatment.
If the fish doesn't start eating well after the PraziPro, you will need to treat for ich or other parasites in a separate hospital tank.