Have a situation here... Naso with Unicorn tang

[naesco]

I would strongly advise you not to put your friends tang in your tank.
The risk is simply too great. You have had problems in the past and you do not want to go through that again.

You need to speak to her as to why she is buying fish before her tank is even cycled.
The unicorn grows far to large for the tank she is planning anyway.
Also, the problem with larger naso tang species, like angels is that they often simply refuse to eat and therefor should never be purchased.

You need to get her on this board seeking advice before she makes more mistakes.

Have her remove the fish and return it to the LFS.

You can try garlic extreme soaked nori. The garlic sometimes acts as a appetite enhancer.