{"product_id":"standard-koi-cyprinus-rubrofuscus-freshwater","title":"Standard Koi (Cyprinus rubrofuscus)","description":"\u003cdiv style=\"font-family:Georgia,serif;color:#1a1a1a;max-width:860px;line-height:1.7;\"\u003e\n\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 Your order is reserved, we hold off on bagging until you arrive so it stays healthy in its display tank.\u003c\/div\u003e\n\u003cp\u003eStandard fin Koi (\u003cem\u003eCyprinus rubrofuscus\u003c\/em\u003e) are the classic pond showpiece: hardy, peaceful, long lived, and endlessly personable once they learn to greet you at feeding time. These are standard grade fish in a mix of reds, whites, oranges, and blacks, each one patterned differently, and at 3 to 4 inches they are the perfect size to grow out in your pond. Come pick your favorites in person, and browse the rest of our \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/fresh-water\"\u003efreshwater livestock\u003c\/a\u003e while you are here.\u003c\/p\u003e\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\u003ePond fish first:\u003c\/strong\u003e koi reach 24 inches or more and live for decades. Plan on a pond of 250 gallons or more per fish long term. An aquarium works only as a temporary grow-out home.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColdwater, no heater:\u003c\/strong\u003e comfortable from 50 to 78°F and fully winter-hardy outdoors. In a pond with 18 inches or more of depth they overwinter in Georgia without help.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater:\u003c\/strong\u003e pH 7.0 to 8.5, moderate hardness. Koi are forgiving, but big fish make big waste, so generous filtration and regular water changes matter more every year they grow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeeding:\u003c\/strong\u003e omnivorous. A quality koi pellet as the staple, cut back or stop feeding when water temps drop below 50°F since their digestion slows in the cold.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrowth:\u003c\/strong\u003e expect fast growth in the first two years with space and good food. Standard grade fish often surprise you, and colors keep developing as they mature.\u003c\/li\u003e\n\u003c\/ul\u003e\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%;margin:8px 0;\"\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;\"\u003eStandard Koi, standard fin\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\u003cem\u003eCyprinus rubrofuscus\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eCurrent Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e3 to 4 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eMax Adult Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e24 inches or more\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;\"\u003e25 to 35 years or more\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eTemperament\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003ePeaceful\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eMinimum Home\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e250 gallon pond per fish long term\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eTemperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e50 to 78°F, coldwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003epH\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e7.0 to 8.5\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\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eDomesticated, developed in Japan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003ePickup\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eIn-store pickup only, no shipping on live fish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\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\u003eKoi are model pond citizens. They mix perfectly with other koi and with single-tailed goldfish like the \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/sarasa-comet-goldfish-carassius-auratus-freshwater\"\u003eSarasa Comet\u003c\/a\u003e and \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/shubunkin-goldfish-carassius-auratus-freshwater\"\u003eShubunkin\u003c\/a\u003e. Avoid housing them with small aquarium fish, since anything bite-sized eventually becomes a snack, and skip tropical species entirely as the temperatures do not match. If you want a fancier look in the same pond, our \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/butterfly-koi-premium-grade-cyprinus-rubrofuscus-freshwater\"\u003eButterfly Koi\u003c\/a\u003e with their long flowing fins mix in seamlessly.\u003c\/p\u003e\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\/fishers-koi-diet-plus-pond-pellets\"\u003eFishers Koi Diet+\u003c\/a\u003e, our staple pond pellet for koi\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/repashy-super-gold-goldfish-koi-gel-food\"\u003eRepashy Super Gold\u003c\/a\u003e gel food for treats and cooler-weather feeding\u003c\/li\u003e\n\u003c\/ul\u003e\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;\"\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCan koi live in an aquarium?\u003c\/strong\u003e\u003cbr\u003eOnly while small. A big tank buys you a season or two of grow-out time, but a healthy koi will outgrow almost any aquarium. Plan for a pond.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill they survive winter outside?\u003c\/strong\u003e\u003cbr\u003eYes. Koi are fully winter-hardy in our climate. Keep a hole in any ice for gas exchange and stop feeding below 50°F, and they will be waiting for you in spring.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat colors am I getting?\u003c\/strong\u003e\u003cbr\u003eStandard grade koi come in a mixed assortment of reds, whites, oranges, and blacks. Since this is pickup only, you get to point at the exact fish you want in our tank.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow fast do they grow?\u003c\/strong\u003e\u003cbr\u003eWith space and steady feeding, expect 6 to 8 inches by the end of the first year and a foot or more by year three.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Squeaky's Aquatics","offers":[{"title":"Default Title","offer_id":48175894954203,"sku":"K0079-K3","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/product-image-new-12.jpg?v=1769096387","url":"https:\/\/squeakysaquatics.com\/products\/standard-koi-cyprinus-rubrofuscus-freshwater","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}