{"product_id":"koi-angelfish-pterophyllum-scalare-freshwater","title":"Koi Angelfish (Pterophyllum scalare) | Live Freshwater Semi-Aggressive Fish","description":"\u003cdiv style=\"background:#E3F2FD;border-left:4px solid #1E88E5;padding:10px 14px;margin:0 0 14px;font-size:0.95em;\"\u003e\n\u003cstrong\u003eIn-store pickup only.\u003c\/strong\u003e Pick up at \u003cstrong\u003e1885 Braselton Hwy, Suite D, Lawrenceville, GA\u003c\/strong\u003e.\u003cbr\u003e\nLivestock is reserved on order — we hold off on bagging until you arrive, so it stays healthy in its display tank.\n\u003c\/div\u003e\n\u003cp\u003eThe \u003cstrong\u003eKoi Angelfish\u003c\/strong\u003e (\u003cem\u003ePterophyllum scalare\u003c\/em\u003e) is a tank-bred color variant of the classic South American angelfish, prized for its calico-style splash of orange, black, and pearl-white on a tall, graceful body. Mature fish often develop more vivid orange \"caps,\" making koi angels a centerpiece fish for the well-planted community tank. Care level is beginner-to-intermediate, temperament is semi-aggressive (cichlid). Browse the rest of our \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/fresh-water\"\u003efreshwater livestock and supplies\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eCare Guide\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank size:\u003c\/strong\u003e 30 gallons minimum for a single juvenile; 55+ gallons for a pair, 75+ for a group of 4–6. Tall tanks suit their body shape best (18″+ height).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e 76–82°F (24–28°C).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epH:\u003c\/strong\u003e 6.5–7.5. Tolerates a wider range when acclimated slowly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness:\u003c\/strong\u003e Soft to moderately hard, 3–15 dGH.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAquascape:\u003c\/strong\u003e Tall driftwood, broadleaf plants (Amazon Sword, Anubias), and open swimming lanes. Avoid spiky\/sharp décor — long fins tear easily.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFiltration \u0026amp; flow:\u003c\/strong\u003e Gentle flow. Strong currents stress them and shred their fins.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroup dynamics:\u003c\/strong\u003e Best raised as a group of 6 juveniles, then thinned as a bonded pair forms. Solo adults are fine; single random pairs without prior bonding can fight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeeding:\u003c\/strong\u003e High-quality flake or pellet 1–2× daily, supplemented with frozen bloodworms, brine shrimp, and daphnia. Avoid feeder fish (parasite risk).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;max-width:560px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eCommon Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eKoi Angelfish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eScientific Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\n\u003cem\u003ePterophyllum scalare\u003c\/em\u003e (koi color variant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eFamily\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eCichlidae\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eTank-bred (parent species: Amazon Basin, South America)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eCare Level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eBeginner–Intermediate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eDiet\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eOmnivore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eLifespan\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e8–10 years with good care\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eSize at Purchase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eApprox. 1–1.5 in body (adult ~6 in tall)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eWater Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eFreshwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eTemperament:\u003c\/strong\u003e Semi-aggressive — peaceful most of the time, but they are cichlids. Expect mild territorial behavior, and outright pair-bonding aggression once a couple forms. Long fins make them easy targets for fin-nippers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGood tank mates:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLarger peaceful tetras — \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/bleeding-heart-tetra-hyphessobrycon-erythrostigma-freshwater\"\u003eBleeding Heart Tetras\u003c\/a\u003e, congo tetras, lemon tetras\u003c\/li\u003e\n\u003cli\u003eBottom dwellers — \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/panda-cory-corydoras-panda-freshwater\"\u003ePanda Corys\u003c\/a\u003e, \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/orange-laser-corydoras\"\u003eOrange Laser Corydoras\u003c\/a\u003e, bristlenose plecos\u003c\/li\u003e\n\u003cli\u003eMid-water dither — \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/zebra-danio-danio-rerio-freshwater\"\u003eZebra Danios\u003c\/a\u003e (in larger tanks)\u003c\/li\u003e\n\u003cli\u003eSouth American dwarf cichlids — \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/bolivian-ram-cichlid\"\u003eBolivian Rams\u003c\/a\u003e, apistogrammas\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAvoid:\u003c\/strong\u003e Fin-nippers (tiger barbs, serpae tetras, some gouramis), very small tetras like neons (will be eaten once angels mature), aggressive cichlids, and dwarf shrimp (snack food).\u003c\/p\u003e\n\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eRecommended Foods \u0026amp; Supplies\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/ocean-nutrition-brine-shrimp-plus-flake-tropical-fish-food\"\u003eOcean Nutrition Brine Shrimp Plus Flake\u003c\/a\u003e — high-protein staple, brings out koi coloration\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/seachem-prime-complete-concentrated-water-conditioner\"\u003eSeachem Prime\u003c\/a\u003e — water conditioner for weekly water changes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/nutrition\"\u003eBrowse all aquarium nutrition\u003c\/a\u003e — frozen foods are essential for color and breeding condition\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/freshwater-aquarium-plants\"\u003eFreshwater aquarium plants\u003c\/a\u003e — tall plants like Amazon Sword complement their body shape\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/fresh-water\"\u003eShop more freshwater livestock \u0026amp; supplies\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow big do Koi Angelfish get?\u003c\/strong\u003e\u003cbr\u003e\nAbout 6 inches tall (top of dorsal to bottom of anal fin) and roughly 4 inches long, fully mature. Plan tank height accordingly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill the orange \"koi\" pattern fade as they grow?\u003c\/strong\u003e\u003cbr\u003e\nThe opposite — koi angelfish typically intensify as they mature. Young fish look pale; the bold orange caps and black-and-white marbling develop with age, good food, and stable water.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I keep just one?\u003c\/strong\u003e\u003cbr\u003e\nYes. Solo angels do fine. The complication is keeping multiple unrelated adults — pairs form unpredictably and can fight. Either keep a single fish, a confirmed bonded pair, or a group of 6+ raised together.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre they hard to care for?\u003c\/strong\u003e\u003cbr\u003e\nNo — angelfish are a beginner-friendly cichlid, but they're sensitive to high nitrate and poor water quality. Weekly 25% water changes and a quality filter keep them thriving.\u003c\/p\u003e\n","brand":"Squeaky's Aquatics","offers":[{"title":"Default Title","offer_id":48541121052891,"sku":"8030105","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_d8943382-7e47-4a84-aea9-5b9ad589e4fe.png?v=1775045789","url":"https:\/\/squeakysaquatics.com\/products\/koi-angelfish-pterophyllum-scalare-freshwater","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}