Rescued a mature Chevron Tang, Need advice

[fkshiu]

As others have stated, nori is important along with mysis.

You can soak both the nori and the mysis in Selcon and add a drop of garlic juice to whet the tang's appetite.

Nori is best purchased from any supermarket for a fraction of the cost from an LFS. Just get the unsalted plain stuff used for sushi wrap.