Shark Epaulette or rank sign shark is a long and slender shark with a flat head. This shark is the most popular shark to be kept as a pet. Rank sign sharks have a unique appearance due to their spotted color. They generally grow to about 3.3 feet when fully grown.

Shark with brown ribbon is another amazing shark that can be kept as a pet. The characteristic of this shark is the presence of whiskers around its nose. As the name suggests, the brown ribbon bamboo shark has a beautiful striped pattern.

Wobbegong can be a perfect shark to be kept as a pet as long as you obtain the right species. Some wobbegongs can grow up to 10 feet long, which is certainly not ideal for an aquarium.

Shark catfish is one of the species of catfish that live in coral reefs. This type of shark grows up to 28 inches long, making it small enough to be kept as a pet. Its body is very slim, while its head and tail are short. The most distinctive characteristic of the coral cat shark is the abundance of black and white spots on its back.

The translated text while preserving the HTML tags is as follows: "Short-tailed nurse sharks are the smallest members of the nurse shark family. These sharks are tropical reef species that can grow up to 30 inches long. As the name suggests, short-tailed nurse sharks have short tails. They also have a fairly blunt and wide head with small nasal barbels."

Shark catfish is a freshwater fish that closely resembles a shark. The color, shape, and mouth of the shark catfish make it look like a shark. However, in reality, the shark catfish is still related to the carp family and is not a true shark, despite its name. The shark catfish is named "shark" because of its swimming style.

Rainbow shark is a small fish with a stingray-like tail, closely related to goldfish and small fish species. Rainbow shark is also commonly known by various names, including ruby shark, red-finned shark, and small fish rainbow shark.