Mustard Guttatus Tang

Latin name: (Acanthurus guttatus)

Care Level





Black, White, Yellow



Preferred Conditions


Avg. Max Size


Minimum Tank Size

250 gallons



The Mustard Guttatus Tang (Whitespotted Surgeonfish) is an impressive species that is commonly seen in large schools on the reef. Its striking body and unique coloring are sure to make it stand out. The body is gray with two silver stripes towards the front, and the back half is dotted with many white spots. The tail and pelvic fins are a bright yellow, providing a beautiful contrast that highlights the fish’s coloration. With its vibrant colors and large school presence, the Mustard Guttatus Tang is a captivating species to observe. Additionally, this species is very hardy, making it a great addition to an aquarium.

The Mustard Guttatus Tang is an impressive species that requires a large aquarium to truly thrive. A 250 gallon tank or larger will provide plenty of space for this fish to swim and explore. It is important to provide a substantial amount of live rock in the aquarium to allow the Tang to graze and also provide hiding spots. This species can be aggressive with other Tangs and Surgeonfish, but is peaceful with other fish. Therefore, it is important to choose tankmates carefully to ensure the health and safety of the Tang. With the right environment, the Mustard Guttatus Tang can be a beautiful and entertaining addition to any aquarium.

Although Tangs will eat meaty foods along with the other fish in the aquarium, they are best off eating a diet full of fresh, healthy marine based seaweed and algae. This will help them to strengthen their immune system, reduce aggression and improve their overall health. Offer dried seaweed tied to a rock or use a lettuce clip, and feed them at least 3 times per week. Sea Veggies, Seaweed Salad and Ocean Nutrition are all great products and are very easy to use.

Gill's Fish