Mimic Surgeonfish (Acanthurus Tristis)

Species Name : Acanthurus Tristis

Care Level : Easy

Temperament : Semi-aggressive 

Color : Blue, White, Yellow 

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 : 10"

Origin : Indian Ocean

Family : Acanthuridae

Minimum Tank Size : 125 gallons

Mimic Surgeonfish (Acanthurus Tristis) commonly referred to as Blackcheek Surgeonfish, Indian Ocean Mimic Surgeonfish, Yellowspot Surgeonfish.

In the adults, the basic colour is brown, more or less pale, more or less pinkish or blue depending on the mood of the fish, and the caudal has a quite showy white rear border. After two white traits under the lips, the underchin is orange as well as the part near to the ventral fins. The young, more coloured, mimic the livery of the Centropyge Eibli. with conspicuous orange dark bands crossing vertically the body, orange underchin, back part of the dorsal, anal and caudal fins with bluish and even black shades, and the margin of the last one, truncated, is light blue. All these characteristics fade while growing, as it can be noted in the pictured subadult, where the orange bands appear already broken above and the dark colouration of the caudal is already very faded.

Can be maintained in reef or fish-only aquariums having wide-open swimming areas and turbulent, well-oxygenated water flow. A 125 gallon or larger aquarium is necessary to provide plenty of swimming room.

It is extremely aggressive towards other Tangs or Surgeonfish, especially those similar in form and color, and should be the only one in the tank except for in very large systems. Introduce all different species of tangs at one time if more than one is to be maintained in the same aquarium.

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. An herbivore diet will help strengthen the immune system, reduce aggression, and improve its overall health. Offer dried seaweed tied to a rock or use a veggie clip, and feed at least 3 times per week.

Size: 

Small : 1-1/2" to 2»

Medium: 2" to 4»