Tristis Tang

Tristis Tang (Acanthurus tristis) is a semi-aggressive species that is reef-safe as it poses no threat to corals or most invertebrates, focusing primarily on algae grazing. This distinctive species displays a yellow-brown to orange body with intricate curved black markings and blue accents that create a complex pattern reminiscent of abstract art, plus the characteristic sharp spine (scalpel) at the base of the tail. The elaborate curved markings and warm coloration make it one of the most uniquely patterned tangs available and a true conversation piece in any marine display. It can reach about 10 inches in adult size. Best kept in tanks of at least 100 gallons or more due to their active swimming nature and territorial behavior toward other tangs, with plenty of live rock for grazing, strong water flow, excellent water quality, and appreciation for their interesting behavioral patterns that make them fascinating to observe. Its diet should include a mix of marine algae—nori sheets, spirulina, dried seaweed, algae pellets—as well as high-quality herbivore foods and occasional meaty supplements like mysis shrimp, as this primarily herbivorous species requires constant access to plant matter and benefits from varied nutrition to maintain their complex coloration and intricate curved markings.

International Aquatics Quarantine & Guarantee: All fish are checked by marine vets, given a formalin bath, and held for 14 days in copper-treated systems. We feed Selcon-soaked food with Kanaplex and Metroplex during quarantine. Unless marked, all livestock comes with our 15-Day Guarantee. You will receive a video of your fish eating before shipment. On request, we also send photos/videos after arrival at IA.

Several species will be import-to-order and may take anywhere from 3-10 business days to secure. Once your fish is secured, you will be notified, and the quarantine process will then begin.