{"product_id":"emperor-angelfish-orangetail-red-sea-pomacanthus-imperator","title":"Emperor Angelfish - Orangetail - Red Sea - Pomacanthus imperator","description":"\u003cp\u003eThe Red Sea Orangetail Emperor Angelfish (\u003cem\u003ePomacanthus imperator\u003c\/em\u003e) is a spectacular regional form of one of the most iconic large marine angelfish. Adults display the classic Emperor pattern of intense blue covered with narrow yellow horizontal stripes, a bold blue-black mask across the eyes, a pale face, and brilliant blue edging along the fins. Specimens sold in the aquarium trade as Red Sea “Orangetail” Emperors are selected or identified for a particularly rich yellow-orange to orange caudal fin, adding even greater contrast to the adult coloration.\u003c\/p\u003e\n\u003cp\u003eThis designation refers to geographic origin and coloration rather than a separate species or subspecies. Orange-tailed \u003cem\u003eP. imperator\u003c\/em\u003e are also encountered from other parts of the Indian Ocean, so orange tail coloration should not be considered unique to the Red Sea population. The species itself has a broad Indo-Pacific distribution beginning in the Red Sea and East Africa and extending far into the Pacific.\u003c\/p\u003e\n\u003cp\u003eLarge adults inhabit coral-rich lagoon, channel, and seaward reef environments, often remaining close to caves and ledges. They feed heavily on sponges, tunicates, and other encrusting organisms. With an adult size approaching 40 cm standard length, the Emperor Angelfish requires a very large, mature saltwater aquarium and is best suited to experienced aquarists seeking a centerpiece fish for a fish-only or FOWLR system.\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 Red Sea\u003cbr\u003e\u003cstrong\u003eScientific Name:\u003c\/strong\u003e \u003cem\u003ePomacanthus imperator\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eFishBase reports a maximum size of 40 cm standard length, while established marine aquarium husbandry guidance recommends a minimum aquarium of approximately 220 gallons and at least six feet in length.\u003c\/p\u003e\n\u003ch2\u003eTank Requirements\u003c\/h2\u003e\n\u003cp\u003eProvide a large, mature aquarium with substantial horizontal swimming space and extensive rockwork arranged into caves, arches, ledges, and protected retreat areas. Adult Emperor Angelfish naturally associate with structurally complex reefs and benefit from secure hiding places while still having enough open space to cruise comfortably.\u003c\/p\u003e\n\u003cp\u003eA \u003cstrong\u003e220-gallon aquarium should be considered the minimum\u003c\/strong\u003e, with larger systems preferred for a mature specimen, especially when other large or territorial fish are present. Quality Marine recommends at least a six-foot-long aquarium for the species.\u003c\/p\u003e\n\u003cp\u003eEstablished live rock is valuable for both shelter and natural grazing. Strong biological filtration, good oxygenation, and consistent water movement are appropriate for this large, active angelfish. No specialized substrate is necessary, so sand or a conventional marine substrate can be used as long as the aquascape remains stable and does not excessively restrict swimming space.\u003c\/p\u003e\n\u003ch2\u003eDiet and Feeding\u003c\/h2\u003e\n\u003cp\u003eThe Emperor Angelfish is an omnivore with a strong natural preference for \u003cstrong\u003esponges, tunicates, and other encrusting reef organisms\u003c\/strong\u003e. This feeding ecology should be reflected in its captive diet rather than relying exclusively on generic pellets or frozen shrimp.\u003c\/p\u003e\n\u003cp\u003eOffer quality frozen angelfish preparations containing sponge, mysis shrimp, enriched brine shrimp, finely chopped marine seafood, Spirulina-based foods, marine algae, frozen omnivore blends, and high-quality marine pellets. Mature live rock also provides valuable opportunities for natural grazing between prepared meals.\u003c\/p\u003e\n\u003cp\u003eFeed two to three smaller meals per day when practical. Newly introduced adults should be monitored carefully to make sure they are eating confidently, as larger wild-collected Emperor Angelfish can sometimes take time to transition fully to prepared aquarium foods.\u003c\/p\u003e\n\u003ch2\u003eTemperament and Tankmates\u003c\/h2\u003e\n\u003cp\u003eThe Red Sea Orangetail Emperor Angelfish is \u003cstrong\u003esemi-aggressive\u003c\/strong\u003e and can become strongly territorial once established. Aggression is most likely to be directed toward other large angelfish or fish with a similar body shape competing for the same areas 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 provoking the angelfish. Avoid very timid species that may be intimidated or prevented from feeding by a dominant adult.\u003c\/p\u003e\n\u003cp\u003eA single Emperor Angelfish is the most straightforward arrangement for most aquariums. Housing multiple large angelfish requires substantially more than the minimum tank volume, extensive visual barriers, and carefully planned introductions.\u003c\/p\u003e\n\u003ch2\u003eReef Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe Emperor Angelfish is \u003cstrong\u003enot considered reliably reef safe\u003c\/strong\u003e. Its natural diet includes sponges, tunicates, and other sessile reef organisms, and aquarium specimens may also nip or consume soft corals, fleshy LPS corals, stony corals, zoanthids, clam mantles, feather dusters, and related invertebrates.\u003c\/p\u003e\n\u003cp\u003eIndividual behavior varies, and some specimens may ignore certain coral species for extended periods. However, this variability should not be interpreted as dependable reef compatibility. For aquarists maintaining valuable coral, clam, sponge, or tunicate collections, the risk is significant enough that a fish-only or FOWLR aquarium is the safer long-term 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\u003eMaintain clean, well-oxygenated water with consistent temperature, salinity, and pH. A mature Emperor Angelfish benefits more from stable conditions and strong aquarium husbandry than from repeatedly adjusting parameters to target a single exact value.\u003c\/p\u003e\n\u003ch2\u003eCommon Considerations\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eVery large adult fish:\u003c\/strong\u003e \u003cem\u003ePomacanthus imperator\u003c\/em\u003e can reach approximately 40 cm standard length and requires substantial long-term swimming space.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e220-gallon minimum:\u003c\/strong\u003e Large adults require an appropriately sized aquarium, with at least six feet of tank length recommended for long-term housing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOrangetail is a trade designation:\u003c\/strong\u003e Red Sea orange-tailed specimens occur in the aquarium trade, but orange caudal coloration is not exclusive to the Red Sea and is also seen in Emperor Angelfish from other Indian Ocean localities.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSponge-rich nutrition is important:\u003c\/strong\u003e Regularly provide 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\u003eNot reliably reef safe:\u003c\/strong\u003e Corals, clams, sponges, tunicates, feather dusters, and other sessile invertebrates 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":52297000845610,"sku":"ANGELxEmpOrRM","price":749.99,"currency_code":"USD","in_stock":false},{"title":"ML (4.6-5.5\")","offer_id":52297000878378,"sku":"ANGELxEmpOrRML","price":806.99,"currency_code":"USD","in_stock":false},{"title":"Large (5.6-6.5\")","offer_id":52297000911146,"sku":"ANGELxEmpOrRL","price":899.99,"currency_code":"USD","in_stock":false},{"title":"XL (6.6-7.5\")","offer_id":52297000943914,"sku":"ANGELxEmpOrRX","price":1010.99,"currency_code":"USD","in_stock":false},{"title":"XX (7.6-8.5\")","offer_id":52297000976682,"sku":"ANGELxEmpOrRXX","price":1169.99,"currency_code":"USD","in_stock":false},{"title":"SHOW (8.6-10.5\")","offer_id":52297001009450,"sku":"ANGELxEmpOrRSH","price":1832.99,"currency_code":"USD","in_stock":false},{"title":"Jumbo (10.6+\")","offer_id":52297001042218,"sku":"ANGELxEmpOrRJUM","price":1994.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/EmperorAngel5.png?v=1787165994","url":"https:\/\/topshelfaquatics.com\/products\/emperor-angelfish-orangetail-red-sea-pomacanthus-imperator","provider":"Top Shelf Aquatics ","version":"1.0","type":"link"}