It is probably banded cat shark. Look up Orectolobifomes. This family has cat, bamboo, carpet sharks. You see these live eggs for sale very often.
How big is you tank.
While I have never opened one, my love for sharks started with Jaws.
Believe these guy eat. Crustaceans, so I would buy right from your butcher. Leave the shells on shrimp as there is nutrients in the shells. Clams mussels and so on.