{"product_id":"yellowfin-tang-acanthurus-xanthopterus","title":"Yellowfin Tang (Acanthurus xanthopterus)","description":"\u003ch1\u003e\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch1\u003eYellow Fin Tang\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eAcanthurus xanthopterus\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Yellow Fin Tang is a large, impressive surgeonfish that makes a fantastic centrepiece for a properly sized reef aquarium. With its silver-grey body, yellow pectoral fins, and distinctive blue and yellow markings around the face and fins.\u003c\/p\u003e\n\u003cp\u003eUnlike some of the smaller tang species, the Yellow Fin Tang can grow quite large and is a very active swimmer. It needs a spacious, mature aquarium with plenty of open swimming room, strong circulation, and established rockwork to explore and graze on.\u003c\/p\u003e\n\u003ch3\u003eCare \u0026amp; Temperament\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDifficulty:\u003c\/strong\u003e Intermediate\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTemperament:\u003c\/strong\u003e Generally peaceful but can become territorial\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAdult Size: \u003c\/strong\u003eGrows up to 20 to 24 inches (50–60 cm) in length.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMinimum Aquarium:\u003c\/strong\u003e 180+ gallons recommended\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSwimming Level:\u003c\/strong\u003e Throughout the aquarium\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eActivity:\u003c\/strong\u003e Very active\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eYellow Fin Tangs are best suited to larger, established aquariums. They spend much of their day swimming through the rockwork and grazing, so plenty of swimming space is important, while they are generally peaceful with most community reef fish they may become territorial toward other surgeonfish, especially after establishing a territory.\u003c\/p\u003e\n\u003ch3\u003eDiet\u003c\/h3\u003e\n\u003cp\u003eThe Yellow Fin Tang is primarily an herbivore and should have regular access to marine algae. A varied diet will help maintain good colour, body condition, and overall health.\u003c\/p\u003e\n\u003cp\u003eWe recommend feeding:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eNori and other marine algae\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSpirulina-based foods\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh-quality herbivore pellets\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMarine flakes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFrozen foods as part of a varied diet\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOffering algae regularly is especially important for tangs and helps encourage their natural grazing behaviour.\u003c\/p\u003e\n\u003ch3\u003eTankmates \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp\u003eYellow Fin Tangs can work well in a community reef aquarium when housed with appropriately sized tankmates. They are generally peaceful toward fish that don't compete directly for territory.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGood tankmates include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eClownfish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWrasses\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGobies\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBlennies\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAnthias\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCardinalfish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLarger peaceful reef fish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eUse caution with:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eOther tangs and surgeonfish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSimilar-looking or similarly shaped fish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdding new fish after the tang has established its territory\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn larger aquariums, careful stocking and plenty of rockwork can help reduce territorial behaviour.\u003c\/p\u003e\n\u003ch3\u003eReef Safe\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eYes — Reef Safe\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYellow Fin Tangs are excellent reef inhabitants and generally leave corals and ornamental invertebrates alone. Their natural grazing behaviour can also be helpful for keeping algae under control.\u003c\/p\u003e\n\u003ch3\u003eSuggested Parameters\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature:\u003c\/strong\u003e 24–27°C (75–81°F)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSalinity:\u003c\/strong\u003e 1.024–1.026\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003epH:\u003c\/strong\u003e 8.0–8.4\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAlkalinity:\u003c\/strong\u003e 7–11 dKH\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAmmonia:\u003c\/strong\u003e 0 ppm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNitrite:\u003c\/strong\u003e 0 ppm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNitrate:\u003c\/strong\u003e Ideally below 10–20 ppm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePhosphate:\u003c\/strong\u003e Ideally below 0.1 ppm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eStable water quality, good oxygenation, and strong circulation are important for this active species.\u003c\/p\u003e\n\u003ch3\u003eWhat You Are Buying\u003c\/h3\u003e\n\u003cp\u003eYou are purchasing \u003cstrong\u003eone Yellow Fin Tang (\u003cem\u003eAcanthurus xanthopterus\u003c\/em\u003e)\u003c\/strong\u003e. Size, colouration, and markings can vary between individual fish.\u003c\/p\u003e\n\u003ch3\u003eHealth \u0026amp; Acclimation Notes\u003c\/h3\u003e\n\u003cp\u003eTangs can be sensitive to stress and poor water quality, particularly when first introduced. Give your new Yellow Fin Tang a calm acclimation and plenty of hiding places while it settles in.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eAcclimate carefully to your aquarium's temperature and salinity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProvide established rockwork for grazing and shelter.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOffer algae soon after introduction.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAvoid adding a tang to a newly established aquarium.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMonitor closely for signs of stress or disease during the first few weeks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy We Love It\u003c\/h3\u003e\n\u003cp\u003eThe Yellow Fin Tang is a great choice for the experienced reef keeper looking for something a little different. Its large size, active swimming style, and unique yellow and blue markings make it a real standout fish. Once established, it becomes a confident and constantly active member of the reef and is sure to draw attention every time someone looks into the tank.\u003c\/p\u003e","brand":"Little Shop of Coral","offers":[{"title":"Medium","offer_id":54555570012433,"sku":null,"price":120.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5196\/6737\/files\/ChatGPT-Image_Sep_3_2026_at_12_20_49_PM.png?v=1788452511","url":"https:\/\/littleshopofcoral.ca\/products\/yellowfin-tang-acanthurus-xanthopterus","provider":"Little Shop of Coral","version":"1.0","type":"link"}