{"product_id":"imperator-orangetail-angelfish","title":"Emperor Angelfish - Orangetail - Xmas Is. - Pomacanthus imperator","description":"\u003cp\u003eThe Orangetail Emperor Angelfish (\u003cem\u003ePomacanthus imperator\u003c\/em\u003e) is a striking regional color form of the iconic Emperor Angelfish, distinguished in the aquarium trade by a richer yellow-orange to orange caudal fin. Mature fish display the unmistakable adult Emperor pattern: a deep blue body crossed by brilliant yellow horizontal stripes, a bold blue-black mask through the eyes, a pale face, and intense blue edging along portions of the fins. “Orangetail” is a trade designation rather than a separate species or subspecies, and Christmas Island specimens are particularly associated with this coloration in the marine aquarium trade.\u003c\/p\u003e\n\u003cp\u003eNative \u003cem\u003ePomacanthus imperator\u003c\/em\u003e occur broadly throughout the Indo-Pacific, where adults inhabit clear lagoons, reef channels, and seaward reefs with abundant coral growth. Large specimens commonly remain near caves, ledges, and other substantial reef structure while grazing on sponges, tunicates, and other encrusting organisms. The species reaches approximately 15–16 inches, making it a substantial saltwater fish requiring a large aquarium planned around its mature size.\u003c\/p\u003e\n\u003cp\u003eWith its exceptional coloration and commanding presence, the Orangetail Emperor Angelfish makes an outstanding centerpiece for a large fish-only or FOWLR aquarium. It can sometimes be maintained in carefully selected reef aquariums, but adult Emperor Angelfish may nip both stony and soft corals as well as clam mantles and other sessile invertebrates, so reef compatibility should be approached conservatively.\u003c\/p\u003e\n\u003ch2\u003eQuick Care Guide\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCare Level:\u003c\/strong\u003e Moderate\u003cbr\u003e\u003cstrong\u003eMinimum Tank Size:\u003c\/strong\u003e 220 gallons\u003cbr\u003e\u003cstrong\u003eTemperament:\u003c\/strong\u003e Semi-aggressive\u003cbr\u003e\u003cstrong\u003eDiet:\u003c\/strong\u003e Omnivore \/ Spongivore\u003cbr\u003e\u003cstrong\u003eReef Safe:\u003c\/strong\u003e No\u003cbr\u003e\u003cstrong\u003eRegion:\u003c\/strong\u003e Indo-Pacific; Orangetail specimens are particularly associated in the aquarium trade with Christmas Island\u003cbr\u003e\u003cstrong\u003eScientific Name:\u003c\/strong\u003e \u003cem\u003ePomacanthus imperator\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eQuality Marine and LiveAquaria both recommend a minimum aquarium of approximately 220 gallons for \u003cem\u003eP. imperator\u003c\/em\u003e, reflecting its large adult size and active lifestyle.\u003c\/p\u003e\n\u003ch2\u003eTank Requirements\u003c\/h2\u003e\n\u003cp\u003eProvide a large, mature marine aquarium with extensive horizontal swimming space and substantial rockwork arranged into caves, arches, ledges, and deep retreat areas. Adult Emperor Angelfish naturally remain close to complex reef structure, so the aquarium should offer secure shelter without filling so much of the tank that open swimming room is restricted.\u003c\/p\u003e\n\u003cp\u003eEstablished live rock is particularly valuable because it provides both shelter and natural grazing surfaces. Strong biological filtration, good oxygenation, and consistent water movement are recommended for a large angelfish that receives frequent feedings. Quality Marine recommends at least a six-foot-long aquarium, with larger systems preferable whenever other large or territorial fish are present.\u003c\/p\u003e\n\u003cp\u003eNo specialized substrate is required. Sand or a conventional marine substrate is suitable as long as the aquascape is stable and leaves enough room for a full-grown fish to maneuver comfortably.\u003c\/p\u003e\n\u003ch2\u003eDiet and Feeding\u003c\/h2\u003e\n\u003cp\u003eThe Orangetail Emperor Angelfish is an omnivore with a strong natural dependence on \u003cstrong\u003esponges, tunicates, and other encrusting reef organisms\u003c\/strong\u003e. Proper nutrition is important for maintaining long-term condition and strong adult coloration.\u003c\/p\u003e\n\u003cp\u003eOffer high-quality frozen angelfish preparations containing sponge, marine algae, Spirulina-based foods, mysis shrimp, enriched brine shrimp, chopped shrimp and other marine seafood, frozen omnivore blends, and quality marine pellets. Sponge-containing foods and marine vegetable matter should remain regular components of the diet rather than occasional supplements.\u003c\/p\u003e\n\u003cp\u003eFeed two to three smaller meals daily when practical. Established live rock provides additional opportunities for grazing between meals, and newly introduced specimens should be monitored closely to ensure they are feeding confidently.\u003c\/p\u003e\n\u003ch2\u003eTemperament and Tankmates\u003c\/h2\u003e\n\u003cp\u003eThe Orangetail Emperor Angelfish is \u003cstrong\u003esemi-aggressive\u003c\/strong\u003e and can become increasingly territorial as it matures. Aggression is particularly likely toward other large angelfish with similar body shapes, and established specimens may strongly defend favored caves or sections of the aquarium.\u003c\/p\u003e\n\u003cp\u003eSuitable tankmates include appropriately sized tangs, rabbitfish, larger wrasses, robust clownfish, and other medium-to-large marine fish capable of competing for food without constantly challenging the angelfish. Very timid species may be intimidated by a mature Emperor in a confined aquarium.\u003c\/p\u003e\n\u003cp\u003eA single Emperor Angelfish is the simplest arrangement for most home systems. Keeping multiple large angelfish requires considerably more than the minimum tank size, extensive visual barriers, and carefully planned introductions.\u003c\/p\u003e\n\u003ch2\u003eReef Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe Orangetail Emperor Angelfish is \u003cstrong\u003enot considered reliably reef safe\u003c\/strong\u003e. Although some individuals may coexist with selected corals for extended periods, the species naturally grazes on sessile reef organisms and may nip stony corals, soft corals, clam mantles, sponges, tunicates, and other stationary invertebrates.\u003c\/p\u003e\n\u003cp\u003eSPS-dominated systems or aquariums containing less-palatable soft corals may occasionally experience fewer problems, but individual behavior cannot be guaranteed. Valuable LPS corals, fleshy soft corals, clams, sponges, tunicates, and feather dusters should all be considered at risk.\u003c\/p\u003e\n\u003cp\u003eFor predictable long-term housing, a large fish-only or FOWLR aquarium is the safest choice.\u003c\/p\u003e\n\u003ch2\u003eWater Parameters\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature:\u003c\/strong\u003e 75–80°F\u003cbr\u003e\u003cstrong\u003eSpecific Gravity:\u003c\/strong\u003e 1.024–1.026\u003cbr\u003e\u003cstrong\u003epH:\u003c\/strong\u003e 8.1–8.4\u003cbr\u003e\u003cstrong\u003eAlkalinity:\u003c\/strong\u003e 8–12 dKH\u003c\/p\u003e\n\u003cp\u003eEmperor Angelfish are relatively robust once established, but they perform best in clean, well-oxygenated water with consistent salinity, temperature, and pH. Stability is more important than continually adjusting the aquarium to reach one exact value.\u003c\/p\u003e\n\u003ch2\u003eCommon Considerations\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLarge adult size:\u003c\/strong\u003e \u003cem\u003ePomacanthus imperator\u003c\/em\u003e reaches approximately 15–16 inches and requires substantial long-term swimming room.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOrangetail is a color form:\u003c\/strong\u003e The name describes aquarium-trade coloration rather than a separate scientific species; Christmas Island fish are especially associated with the Orangetail designation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSponge-rich nutrition is important:\u003c\/strong\u003e Regularly provide quality marine angelfish preparations containing sponge alongside algae and varied marine proteins.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUse caution with other angelfish:\u003c\/strong\u003e Mature specimens can become territorial toward similarly shaped large angels.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCorals and sessile invertebrates are at risk:\u003c\/strong\u003e Stony and soft corals, clam mantles, sponges, and tunicates may be nipped or consumed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TSA Fish","offers":[{"title":"Medium (3.6-4.5\")","offer_id":50785096794410,"sku":"ANGELxEmpOrXmM","price":1334.99,"currency_code":"USD","in_stock":false},{"title":"ML (4.6-5.5\")","offer_id":52296947302698,"sku":"ANGELxEmpOrXmML","price":1499.99,"currency_code":"USD","in_stock":false},{"title":"Large (5.6-6.5\")","offer_id":50785096827178,"sku":"ANGELxEmpOrXmL","price":1589.99,"currency_code":"USD","in_stock":false},{"title":"XL (6.6-7.5\")","offer_id":51053670531370,"sku":"ANGELxEmpOrXmX","price":1844.99,"currency_code":"USD","in_stock":false},{"title":"XX (7.6-8.5\")","offer_id":52296947335466,"sku":"ANGELxEmpOrXmXX","price":1994.99,"currency_code":"USD","in_stock":false},{"title":"SHOW (8.6-10.5\")","offer_id":52296947368234,"sku":"ANGELxEmpOrXmSH","price":2189.99,"currency_code":"USD","in_stock":false},{"title":"Jumbo (10.6+\")","offer_id":52296947401002,"sku":"ANGELxEmpOrXmJUM","price":2369.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/OrangetailEmperor.png?v=1787164896","url":"https:\/\/topshelfaquatics.com\/products\/imperator-orangetail-angelfish","provider":"Top Shelf Aquatics ","version":"1.0","type":"link"}