# Cyprinus rubrofuscus The Cyprinus rubrofuscus, also known as the red-finned carp, is a colorful fish that loves to swim in ponds and lakes. They have bright orange and red fins that make them easy to spot in the water! - **Category:** [Fish](https://www.snappit.app/explore/categories/fish) - **Rarity:** Common - **Danger:** 1/5 · Very low - **Snaps:** 8 - **Habitat:** Freshwater lakes and ponds - **Also known as:** Red-finned Carp ![Cyprinus rubrofuscus](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Cyprinus_rubrofuscus_Bleeker.jpg&width=800) Photo: Published by Zoologische Mededelingen, at http://www.zoologischemededelingen.nl . Creative commons license published on main page., CC BY 3.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Cyprinus_rubrofuscus_Bleeker.jpg) ## Appearance The Cyprinus rubrofuscus has a robust body adorned with vibrant, iridescent scales in striking patterns of red, white, black, orange, and gold. Its distinctive barbels around the mouth help it stand out from other freshwater fish. ## Taxonomy - **Kingdom:** Animalia - **Phylum:** Chordata - **Class:** Actinopterygii - **Order:** Cypriniformes - **Family:** Cyprinidae - **Genus:** Cyprinus ## Interesting facts - Koi fish can be taught to eat gently from your hand, showing how friendly they can become! - Some Koi fish have names reflecting their beautiful, unique patterns, like 'Kohaku' or 'Sanke'! - The oldest recorded Koi fish lived to be an astonishing 226 years old! - They are actually a domesticated form of the Amur carp, not a completely wild species! ## Special abilities - **Living Jewels:** Cyprinus rubrofuscus has dazzling patterns and colors because of selective breeding, helping them stand out beautifully in ponds. - **Bottom Feeder Sense:** Cyprinus rubrofuscus can find food in muddy waters because of sensitive barbels near its mouth, helping them detect prey. - **Temperature Tolerant:** Cyprinus rubrofuscus can survive in varying water temperatures because of its hardy carp genetics, helping them adapt to seasons. - **Ancient Life:** Cyprinus rubrofuscus has an incredibly long lifespan because of its genetic makeup, allowing it to live for many decades. ## Measurements & details - **Length:** 30-90 cm - **Weight:** 1-15 kg - **Lifespan:** 20-50 years - **Swim Speed:** 8 km/h - **Maximum Depth:** 10 m - **Water Type:** Freshwater ## Diet & Feeding Koi are omnivores, munching on a mix of plants, insects, and small water creatures from the pond bottom. - **Primary Foods:** algae, aquatic plants, insect larvae, worms, small crustaceans, commercial pellets - **Foraging Method:** Foraging ## Ecological connections - **Depends on:** Humans (*Homo sapiens*) — Needs human care for food and shelter in ponds. - **Eaten by:** [Grey Heron](https://www.snappit.app/explore/grey-heron) (*Ardea cinerea*) — Preys on fish in shallow waters, especially smaller Koi. - **Eaten by:** [Eurasian Otter](https://www.snappit.app/explore/eurasian-otter) (*Lutra lutra*) — Skilled hunter of fish in freshwater habitats and ponds. - **Eats:** Bloodworm (*Chironomus plumosus*) — Consumes larvae and pupae from the pond substrate. ## Traits - [Social](https://www.snappit.app/explore/traits/social): Social animals live in organized groups, cooperating for survival benefits such as foraging, defense, and raising offspring. - [Omnivorous](https://www.snappit.app/explore/traits/omnivorous): This trait identifies organisms whose diet includes both plant and animal matter. - [Colorful](https://www.snappit.app/explore/traits/colorful): Colorful describes organisms or objects displaying a wide range of bright and distinct colors. - [Herbivorous](https://www.snappit.app/explore/traits/herbivorous): This trait characterizes organisms whose diet consists entirely or primarily of plant material. - [Diurnal](https://www.snappit.app/explore/traits/diurnal): Diurnal animals are primarily active during daylight hours, typically resting or sleeping at night. - [Freshwater](https://www.snappit.app/explore/traits/freshwater): Freshwater habitats include non-saline aquatic environments such as rivers, lakes, ponds, and wetlands, vital for numerous species. - [Aquatic](https://www.snappit.app/explore/traits/aquatic): Aquatic habitats encompass environments where organisms live predominantly in water, including oceans, rivers, lakes, and wetlands. ## Collections - [Fish](https://www.snappit.app/explore/collections/fish) ## Safety **Danger:** 1/5 · Very low Always be careful near water and ask an adult before going swimming. ## Frequently Asked Questions ### How to identify Cyprinus rubrofuscus? Look at body shape, where the fins sit and their outline, mouth position, stripes and spots. Young fish and breeding adults can wear different patterns, and aquarium color varieties can look nothing like wild fish. Fish Identifier: upload a photo and compare the visible details. ### How long is Cyprinus rubrofuscus? 30-90 cm ### How much does Cyprinus rubrofuscus weigh? 1-15 kg ### How long does Cyprinus rubrofuscus live? 20-50 years ### What does Cyprinus rubrofuscus eat? Koi are omnivores, munching on a mix of plants, insects, and small water creatures from the pond bottom. ### How fast can Cyprinus rubrofuscus swim? 8 km/h ### Where is Cyprinus rubrofuscus usually found? Freshwater lakes and ponds ### How does Cyprinus rubrofuscus hunt? Foraging ## Where to spot - [Capen-Clark Historic District](https://www.snappit.app/guides/places/capen-clark-historic-district) — Connecticut, US · Historic District - [Verona Park](https://www.snappit.app/guides/places/verona-park) — New Jersey, US · Park - [Clay Hill Historic District](https://www.snappit.app/guides/places/clay-hill-historic-district) — Connecticut, US · Historic District - [Coltsville Historic District](https://www.snappit.app/guides/places/coltsville-historic-district) — Connecticut, US · Historic District - [Eutaw-Madison Apartment House Historic District](https://www.snappit.app/guides/places/eutaw-madison-apartment-house-historic-district) — Maryland, US · Historic District - [Hagerstown Commercial Core Historic District](https://www.snappit.app/guides/places/hagerstown-commercial-core-historic-district) — Maryland, US · Historic District [View all places to see Cyprinus rubrofuscus](https://www.snappit.app/guides/where-to-see/cyprinus-rubrofuscus) ## More Fish - [Rainbow Trout](https://www.snappit.app/explore/rainbow-trout) (*Oncorhynchus mykiss*) - [Brown Trout](https://www.snappit.app/explore/brown-trout) (*Salmo trutta*) - [Brook Trout](https://www.snappit.app/explore/brook-trout) (*Salvelinus fontinalis*) - [Lake Trout](https://www.snappit.app/explore/lake-trout) (*Salvelinus namaycush*) --- Source: [Cyprinus rubrofuscus: Facts & Places to See — Snappit](https://www.snappit.app/explore/cyprinus-rubrofuscus)