Table of Contents Introduction to Sharks Shark Catfish The Red Tailed Shark Rainbow Shark Bala Shark Great White Shark Bull Shark Tiger Shark Hammerhead Shark Whale Shark Shark Attacks Shark Behavior What Sharks Look Like Facts about Sharks Publisher Introduction to Sharks In an aquarium, sharks are one of the most requested fish to be seen, by visitors. There are two types of sharks, those that live in salt water, like the ocean, and those that live in fresh water. Many sharks are big and scary, but not all of them.