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Blue Caribbean Tang
Please Note: Due to variations within species, your item may not look identical to the image provided. Approximate size range may also vary between individual specimen.
Blue Caribbean Tang (Acanthurus coeruleus)
Additional locales and sizes may be available!

Quick Stats

Care Level Moderate
Temperament Semi-aggressive
Color Form Blue
Diet Herbivore
Reef Compatible Yes
Water Conditions sg 1.020-1.025, 72-78° F, dKH 8-12, pH 8.1-8.4
Max. Size 9"
Origin Caribbean
Family Acanthuridae
Minimum Tank Size 180 gallons
Compatibility View Chart
What do these Quick Stats mean? Click here for more information


The Blue Caribbean Tang, also known as the Atlantic Blue Tang, Blue Tang Surgeonfish, and simply the Blue Tang, has an oval body with bold markings that change as the fish matures from juvenile to adult. A juvenile is bright yellow with two blue bands at the eyes, and additional blue markings at the fringes of the dorsal and caudal fins. When mature, the blue will become even brighter with markings running horizontally along the entire body. It may have a yellow tail.

A 180 gallon or larger aquarium is necessary to provide plenty of swimming room. It is aggressive towards other Tangs and Surgeonfish, but peaceful with other fish.

Although Tangs will eat meaty foods along with the other fish in the aquarium, it is important that they are offered plenty of marine based seaweed and algae. This will strengthen their immune system, reduce aggression and improve their overall health. Offer dried seaweed tied to a rock or use a veggie clip, and feed at least 3 times per week. Sea Veggies, Seaweed Salad and Ocean Nutrition are all ideal products and are very easy to use.

Approximate Purchase Size: Juvenile Tiny: 3/4" to 1 1/2" ; Small: 1 1/2" to 2"; Medium: 2" to 2-1/2"; Adult Small: 2-1/2" to 3"; Medium: 3" to 4"; Large: 4" to 6" ; Extra Large 6" to 7"; XXLarge: 7" and Larger

Customer Testimonials

Serge Nguyen Minneapolis , MN
This is a very beautiful fish! It practically glows a neon blue along its fins and is very peaceful. truly delivers great fish!
Jeff S Metamora , IL
I received a beautiful specimen from the Diver's Den a few weeks ago. I've had the Caribbean Tang in my 540 gallon tank over a week along with a few other Tangs. He's doing great and gets along fine with the other tank inhabitants.
Dave S Port Charlotte , FL
I got my Blue Tang today. He went in the back of the tank and is doing great. He swims around like other tangs and is a beautiful specimen. I love Live Aquaria and foster and smith's Fish. Great job guys, keep up the great fish!
1-3 of 3 testimonials

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