In one sentence, describe what the following article is about:

Your new bamboo shark will eat foods such as uncooked shrimp, scallops, mussels, and pieces of fresh marine fish, squid or octopus. Cut any large food into bite-sized pieces.  Do not feed your shark common feeder fish such as goldfish or guppies. These freshwater fish are not a natural food for bamboo sharks. If you wish to feed your shark live food, use silversides or sand eels.  Bamboo sharks only need to be fed every two or three days. Give the shark a large portion of food a few times a week. If it loses weight, increase feeding. A juvenile shark should grow, but if an adult shark shows signs of weight gain, reduce the amount of food.  When you first get your shark, it may be hesitant to eat. Providing live food such as saltwater feeder shrimp and fresh cockle (in the shell) may help entice it to eat. If it takes a few days to start eating, don't be alarmed. These sharks can survive a few weeks without eating. A clean aquarium is important to keep your shark healthy.  Clean/replace the filters often, and change the water when necessary.  Your protein skimmer will need to be emptied approximately every other day. Follow package instructions for replacement of carbon filters. When water becomes overly soiled (i.e. cloudy), you will need to change it. This will require large containers full of RODI filtered and salted water, and pumps to remove the old water while adding the new. Bamboo sharks can coexist with other fish if you want to make your aquarium more interesting. Be aware, however, that small fish will probably be eaten, and any crustaceans are likely to disappear very quickly. Bamboo sharks have been kept successfully with grunts, snappers, jacks, groupers, and goatfish.

Summary:
Feed the shark. Keep the aquarium clean. Introduce other fish if desired.