I have a Tassled or Leatherjacket Filefish and i love him.
He very shy with people he doesn't recognize, which is one reason why I find him so interesting. He really does know his "mom"
otherwise, he's right out in front part of tank watching me constantly. He even lets me pet his tassles on top of his head.
He's been very easy to keep. Eats anything and everything I offer and right now, it's about 9:30 p.m., tank lights are off, but room lights are on and I'm watching him pick around for stuff in the rocks. I have never seen him nip at any corals.