Pls help, fish ID and Care

[johnlim]

Dear all,

I purchased this fish yesterday. It looks like butterfly, i'm concern as i do not have a reef tank. The aquarium keeper told me it eats normal feed, thats why i decided to take a try.

And now, i noticed it does not eat any feed that i put in. it's abviously hungry as it has been biting on rock and glass wall looking for food. Im getting panic, there isnt reef at all in my tank to feed it. I tried to go online to check for its details, i couldnt even find this fish.

Can anyone enlighten me? pls pls...