brownbanded bambooshark

I hatched a brownbanded bambooshark (cat shark) about a month ago. Since then we've tried to feed him shark formula, popcorn shrimp, frozen brine shrimp, angel formula etc... So far we havent seen him eat anything. He's getting skinny, and I am worried. Is there anyone out there who knows something I don't know? I need help.:( My Sharkie has had it. If there is anyone who does know the secret I would still be interested in advice. My water quality is good, and it's a 45 gal. tank. I would like to get another one someday. It's a great experience. With the purse against the glass, you can actually see the shark grow. Totally amazing.

Good luck. I did a search at Dogpile and came up with these links:
http://www.animal-world.com/encyclo/..._shark_FWZ.htm

http://www.enchantedlearning.com/sub...y/indexc.shtml