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Clown Tang

Scientific Name: Acanthurus lineatus
Family: Acanthuridae

About the Clown Tang

Species Type: Saltwater Fish
Category: Tangs & Rabbitfish

Care Level: Difficult. Healthy specimens may be difficult to find, as stress during shipping is normal. Triggering a feeding response in captivity may present a challenge, or meeting the dietary demands of the species may require special daily care. Is prone to disease, requiring high water quality. Proper acclimation and quarantine are essential, and the use of a UV Sterilizer is suggested. Recommended for advanced marine hobbyists only.
Origin: Fiji, Maldives, Vanuatu
Compatibility/Temperament: The Clown Tang is not typical of the Acanthurus genus. If successfully acclimated, they are a very aggressive and territorial fish. They should be given plenty of space and not kept with other members of the same genus. They do fare well in a reef environment with smaller fish that do not pose a threat. They will generally mix with Tangs outside of their genus, such as the commonly seen Sailfin Tang and Yellow Tang. In all cases, however, you should ensure that the Clown Tang is the very last addition to your display.


The Clown Tang will not bother coral or invertebrates, however it may eat desirable marine algae. A very difficult saltwater fish to acclimate to the home aquarium, they should only be kept by the most experienced saltwater fish keepers. For best chance of survival a quarantine period is an absolute must, and treating for internal parasites as a preventative is suggested.

If you are fortunate enough to successfully acclimate a Clown Tang to your display tank, they are a stunning fish that will serve as the centerpiece of your aquarium. They swim constantly, grazing on the sand and rock, and display a beautiful blue strip on yellow body.

Clown Tang Diet

Feed a diet rich in vegetable matter including frozen herbivore foods, dried seaweed, or live macro algae. Freeze dried algae sheets should be offered daily.


Reaching up to 14'' as an adult. They are a very fast growing species and sufficient space should be given to allow them to reach adult size in your aquarium.

Minimum Tank Suggestion

125 gallons

Ideal water parameters for Clown Tang

Marine fish are highly sensitive animals with very specific care requirements. Most all saltwater species will require similar water conditions, designed to replicate that of natural seawater. Ammonia and nitrite levels should absolute zero, temperature at 76F to 80F, and salinity at 1.024 to 1.026. Although some fish are tolerant of lower levels of Nitrate, the goal in every aquariums should be to keep Nitrate as close to zero as possible, and certainly under 20ppm. Finally, maintaining a stable pH of 8.0 to 8.4 is desired. Achieving this is made easier by monitoring alkalinity, which should be kept at 8-12 DKH, and calcium, which is targeted at 400 to 460ppm.

Contributing Members

The following members have contributed to this profile: Pasfur
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