{"title":"Koi \u0026 Pond Fish","description":"\u003cp\u003eShop \u003cstrong\u003ekoi and pond fish\u003c\/strong\u003e for outdoor ponds, water gardens, and large freshwater setups. This collection features beautiful live pond fish like \u003ca href=\"\/products\/assorted-koi-5-6-inch-medium\"\u003eAssorted Koi\u003c\/a\u003e and \u003ca href=\"\/products\/butterfly-koi-3-4\"\u003eButterfly Koi\u003c\/a\u003e, along with the striking \u003ca href=\"\/products\/chinese-highfin-shark\"\u003eChinese Highfin Shark\u003c\/a\u003e and other unique species suited to spacious aquariums and pond environments. Koi and pond fish are active, colorful, and rewarding to keep, but they grow large and do best with plenty of space, strong filtration, and long-term planning. If you are also stocking an indoor tank, browse our wider \u003ca href=\"\/collections\/freshwater-fish\"\u003efreshwater fish\u003c\/a\u003e and \u003ca href=\"\/collections\/goldfish-collection-beautiful-hardy-and-peaceful-aquarium-favorites\"\u003egoldfish collection\u003c\/a\u003e, since goldfish share the same cold-water care needs.\u003c\/p\u003e\n\u003ch2\u003eFeatured Koi and Pond Fish\u003c\/h2\u003e\n\u003cp\u003eOur \u003ca href=\"\/products\/assorted-koi-5-6-inch-medium\"\u003eAssorted Koi\u003c\/a\u003e offer the classic mix of colors and patterns that make koi keeping so rewarding, while \u003ca href=\"\/products\/butterfly-koi-3-4\"\u003eButterfly Koi\u003c\/a\u003e add long, flowing finnage that looks spectacular gliding through a pond. For something truly different, the \u003ca href=\"\/products\/chinese-highfin-shark\"\u003eChinese Highfin Shark\u003c\/a\u003e is a peaceful, sail-finned oddball that grazes the bottom and becomes a real showpiece as it grows. All of these fish are cold-water species that thrive in cool, clean, well-oxygenated water, making them ideal for ponds and very large aquariums rather than warm tropical tanks. Seasonal pond fish are also added when available.\u003c\/p\u003e\n\u003ch2\u003ePond and Tank Requirements\u003c\/h2\u003e\n\u003cp\u003eKoi, butterfly koi, and Chinese Highfin Sharks all grow large and need room to thrive. Outdoor ponds should offer plenty of volume and depth so water stays cool in summer and resists freezing solid in winter, while indoor keepers should choose the largest setup possible from our \u003ca href=\"\/collections\/glass-aquariums-freshwater-fish-tanks-for-sale\"\u003eglass aquariums\u003c\/a\u003e. Strong biological filtration is essential because pond fish are heavy eaters and produce a lot of waste, so pair your system with filtration from our \u003ca href=\"\/collections\/aquarium-filtration-filters-filtration-systems-for-fish-tanks\"\u003eaquarium filtration\u003c\/a\u003e lineup rated above your water volume. Hardy \u003ca href=\"\/collections\/live-aquatic-plants-for-freshwater-aquariums\"\u003elive aquatic plants\u003c\/a\u003e can help absorb nitrates and provide shade, though large koi may nibble softer varieties.\u003c\/p\u003e\n\u003ch2\u003eWater Quality and Care\u003c\/h2\u003e\n\u003cp\u003eStable, high-quality water is the foundation of healthy pond fish. Keep ammonia and nitrite at zero and nitrate low through regular water changes, and always treat tap water with a quality \u003ca href=\"\/collections\/aquarium-water-conditioner-dechlorinator-water-treatment-for-fish-tanks\"\u003ewater conditioner\u003c\/a\u003e to remove chlorine and chloramine. Test your parameters regularly with a reliable \u003ca href=\"\/collections\/api-aquarium-products-water-conditioner-fish-care-test-kits\"\u003etest kit\u003c\/a\u003e, and stay on top of routine upkeep with our \u003ca href=\"\/collections\/aquarium-maintenance-cleaning-supplies-tank-care-products\"\u003eaquarium maintenance supplies\u003c\/a\u003e. For a deeper walkthrough, see our \u003ca href=\"\/blogs\/tank-buddy-blog\/koi-care-guide\"\u003eKoi Care Guide\u003c\/a\u003e and \u003ca href=\"\/blogs\/tank-buddy-blog\/chinese-highfin-shark-care-guide\"\u003eChinese Highfin Shark Care Guide\u003c\/a\u003e, which cover seasonal care, feeding, and health in detail.\u003c\/p\u003e\n\u003ch2\u003eFeeding Koi and Pond Fish\u003c\/h2\u003e\n\u003cp\u003eKoi and pond fish are omnivores with hearty appetites. Feed a high-quality floating \u003ca href=\"\/collections\/fish-food-pellets-for-freshwater-aquariums\"\u003epellet\u003c\/a\u003e formulated for koi or pond fish, and offer bottom-grazing species like the Chinese Highfin Shark \u003ca href=\"\/collections\/fish-food-wafers-for-bottom-feeder-fish\"\u003esinking wafers\u003c\/a\u003e that reach the substrate. Browse our full \u003ca href=\"\/collections\/aquarium-fish-food-freshwater-fish-food-premium-fish-diets\"\u003eaquarium fish food\u003c\/a\u003e selection for color-enhancing and seasonal diets, and remember to feed less as temperatures drop, stopping entirely in very cold water when fish cannot properly digest.\u003c\/p\u003e\n\u003ch2\u003eSeasonal Care in Wyoming and Cooler Climates\u003c\/h2\u003e\n\u003cp\u003eBecause koi and pond fish are cold-water species, seasonal changes matter, especially in cooler climates like Wyoming. In spring, fish wake up hungry and water quality can swing as the biological filter catches back up, so test often and feed lightly at first. Summer brings peak activity and warmer water that holds less oxygen, making strong aeration important. In autumn, gradually reduce feeding as temperatures fall, and through winter focus on stability, keeping a small area of an outdoor pond open for gas exchange and avoiding disturbance of dormant fish.\u003c\/p\u003e\n\u003ch2\u003eChoosing the Right Pond Fish for You\u003c\/h2\u003e\n\u003cp\u003eThe right pond fish depends on your space and goals. Classic koi and butterfly koi are the heart of any pond, while the \u003ca href=\"\/products\/chinese-highfin-shark\"\u003eChinese Highfin Shark\u003c\/a\u003e adds an unusual, sail-finned centerpiece for keepers with serious room. If you are newer to the hobby or working with a smaller setup, you may want to start with hardy options from our \u003ca href=\"\/collections\/beginner-fish-for-sale\"\u003ebeginner fish\u003c\/a\u003e selection or explore other \u003ca href=\"\/collections\/oddballs-unique-fish-for-sale\"\u003eoddball fish\u003c\/a\u003e first, then graduate to a full pond as your experience and space grow. Whatever you choose, plan for the adult size of your fish from day one.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow big do koi and Chinese Highfin Sharks get?\u003c\/strong\u003e Koi commonly reach 12 to 18 inches or more, and Chinese Highfin Sharks can exceed two feet, so both need a pond or a very large aquarium as adults.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan pond fish live indoors?\u003c\/strong\u003e Young koi and highfin sharks can be kept in a large indoor tank, but adults do best in a pond or oversized system because of their size and waste output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo koi and pond fish need a heater?\u003c\/strong\u003e No. These are cold-water fish that prefer cool, well-oxygenated water, so outdoor ponds usually need no heating, while indoor tanks simply need stable, cool temperatures.\u003c\/p\u003e","products":[{"product_id":"assorted-koi-5-6-inch-medium","title":"Assorted Koi 5–6\" Medium | Live Pond Koi Fish","description":"\u003ch2\u003eAssorted Koi 5–6\" Medium\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAssorted Koi\u003c\/strong\u003e are beautiful, active pond fish known for their bright colors, unique patterns, and graceful swimming. These medium 5–6 inch koi are a great choice for outdoor ponds, large water gardens, or very large indoor aquariums.\u003c\/p\u003e\n\u003cp\u003eEach koi is assorted, meaning colors and patterns will vary. You may receive a mix of white, orange, yellow, black, red, or patterned koi depending on current availability.\u003c\/p\u003e\n\u003ch3\u003eProduct Highlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAssorted koi, approximately 5–6 inches\u003c\/li\u003e\n\u003cli\u003eGreat for outdoor ponds and large water gardens\u003c\/li\u003e\n\u003cli\u003eActive, hardy, and eye-catching pond fish\u003c\/li\u003e\n\u003cli\u003eAssorted colors and patterns may vary\u003c\/li\u003e\n\u003cli\u003eExcellent choice for pond hobbyists\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCare Requirements\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Tank\/Pond Size:\u003c\/strong\u003e Large pond recommended\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e 59–77°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperament:\u003c\/strong\u003e Peaceful\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiet:\u003c\/strong\u003e Quality koi pellets, pond sticks, and occasional treats\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdult Size:\u003c\/strong\u003e Can grow over 24 inches with proper care\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCare Level:\u003c\/strong\u003e Beginner to Intermediate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cp\u003eKoi grow very large and require excellent filtration, plenty of swimming space, and stable water quality. They are best suited for outdoor ponds or very large aquariums. These fish should not be kept in small tanks long-term.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003ePhotos are representative only. Size, color, and pattern may vary based on availability.\u003c\/em\u003e\u003c\/p\u003e","brand":"Tropical Treasures Wyo LLC","offers":[{"title":"Default Title","offer_id":53999697363157,"sku":null,"price":24.99,"currency_code":"USD","in_stock":false}]},{"product_id":"butterfly-koi-3-4","title":"Butterfly Koi 3–4\"","description":"\u003ch2\u003eButterfly Koi 3–4\"\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eButterfly Koi\u003c\/strong\u003e are beautiful long-fin koi known for their flowing fins, graceful swimming, and colorful patterns. These 3–4 inch koi are a great choice for outdoor ponds, water gardens, or large grow-out setups.\u003c\/p\u003e\n\u003cp\u003eEach Butterfly Koi is assorted, meaning colors and patterns may vary based on current availability. They may include combinations of white, orange, yellow, black, red, or mixed patterns.\u003c\/p\u003e\n\u003ch3\u003eProduct Highlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLive Butterfly Koi, approximately 3–4 inches\u003c\/li\u003e\n\u003cli\u003eLong flowing fins with graceful movement\u003c\/li\u003e\n\u003cli\u003eGreat for outdoor ponds and water gardens\u003c\/li\u003e\n\u003cli\u003eAssorted colors and patterns may vary\u003c\/li\u003e\n\u003cli\u003ePeaceful pond fish with plenty of personality\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCare Requirements\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Tank\/Pond Size:\u003c\/strong\u003e Large pond recommended long-term\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e 59–77°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperament:\u003c\/strong\u003e Peaceful\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiet:\u003c\/strong\u003e Quality koi pellets, pond sticks, and occasional treats\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdult Size:\u003c\/strong\u003e Can grow over 24 inches with proper care\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCare Level:\u003c\/strong\u003e Beginner to Intermediate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cp\u003eButterfly Koi grow large and require excellent filtration, stable water quality, and plenty of swimming space. They are best suited for outdoor ponds or very large aquariums as they mature.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003ePhotos are representative only. Size, color, and pattern may vary based on availability.\u003c\/em\u003e\u003c\/p\u003e","brand":"Tropical Treasures Wyo LLC","offers":[{"title":"Default Title","offer_id":54000236429525,"sku":null,"price":14.99,"currency_code":"USD","in_stock":false}]}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/4545\/8133\/collections\/884e9058-534a-491c-ba3f-6645e8f8566c_1c93bc17-3459-4ef9-9c19-9cb96718ac3d.png?v=1782669307","url":"https:\/\/tropicaltreasureswyo.com\/collections\/koi-pond-fish.oembed","provider":"Tropical Treasures Wyo LLC","version":"1.0","type":"link"}