The Marbled Cat Shark is considered a “true catshark” with a long slender body and a narrow head. It is a bottom feeder that is found in Northern Australia.

The adult size of 24 inches (60 cm) makes this shark the smallest we have encountered!

The Marbled Cat Shark is considered a good aquarium choice. It is hardy and easy to take care of, though it will need a roomy marine aquarium to accommodate it when it reaches it’s adult size.

Scientific Classification

close up marbled cat shark or coral cat shark
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Maintenance difficulty

   The Marbled Cat Shark is easy to keep if you have a large enough aquarium.


   Feed all kinds of large meaty foods like small pieces of fish, squid, shrimp, frozen silversides, and krill. Best to feed small amounts several times a day.

Habitat: Natural geographic location

   Marbled Cat Shark are found near Northern Australia.


  Natural foods include gastropod and bivalve molluscs with smaller amounts of crabs, shrimp, and small fish.

Social Behaviors

   This fish can be kept with other fish and is usually no problem even with smaller fish that could be eaten. They usually only try to eat fish that are either dying or distressed.

Sexual differences

    The medial edges of the male’s pelvic fins are modified to form claspers. The claspers are tubelike organs designed to deliver sperm into the female’s reproductive tract. As the males grow older the claspers become more pronounced. The females do not have these.

Light: Recommended light levels

   No special requirements.

marbled cat shark or coral catshark on the sea floor
Image Credit: Ethan Daniels, Shutterstock


   Oviparous egglayer. The young are about 10 cm (4 inches) in length when they hatch.


   No special requirements.

Length/Diameter of fish

   Marbled Cat Shark adults can grow to 24 inches (60 cm).

Minimum Tank Length/Size

   A minimum 100 gallon aquarium is recommended.

Water Movement: Weak, Moderate, Strong

   Not particular.

Water Region: Top, Middle, Bottom

   Spends time at the bottom of the aquarium.


   This fish is occasionally available.

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