Info from another site...
The Black Banded Cat Shark is known as a Cat Shark because the barbels at the mouth look like cat whiskers. It is also referred to as the Brownbanded Bamboo Shark, and has a cream-colored body with broad dark black stripes. There may be large, muted brown spots between the stripes when the fish gets larger.
The Black Banded Cat Shark is a bottom dwelling shark that is common in the home aquarium. It will eat any crustacean in the aquarium. It stays relatively small, but requires at least a 180 gallon or larger aquarium as an adult. It requires sand as the substrate as the abdomen is easily scratched by a coarser substrate, which may lead to an infection. It should never be exposed to copper-based medications.
Feeding may be difficult in the beginning. When first introduced into the aquarium, small pieces of cleaned squid or live
saltwater feeder shrimp should be used to entice this fish to eat. Then it may be fed shrimp, scallops or pieces of fresh marine fish. Feeding these sharks quality foods such as whole cockle in the shell, fresh shrimp and squid, and frozen mussel are ideal.
Are you hatching an egg? or do you have one that is fairly young? and has it ever eaten ANYTHING yet?
If it is a newly hatched shark,,, it will normally not eat for the first 3 days or so.. it had enough yolk in the egg sack normally, then after that feed it small pieces of cleaned squid or shrimp every other day or so until it readily accepts them.. then see how much you can feed it every other day for a few weeks then you can go to every 3 days for another few weeks then every 4 or 5 days... but you want to let it have enough to choose from when it is young.. and remove the food it doesnt eat right away.. that should give you a base line for feeding... then of course as he grows your going to have to offer more...
If you are going to have other fish in this tank (which I am assuming is over 120 gallons if you have been reading on the internet...) he must be well fed so you may want to stick to the every 3 or 4 day schedule...