Butterfly Koi are a popular ornamental variety of koi fish, known for their long, flowing fins and graceful swimming. They are hybrids between koi and Asian carp.
Scientific Name
Cyprinus rubrofuscus (hybrid)
Habitat
Prefer outdoor ponds with good filtration and space. Thrive in cool, well-oxygenated freshwater environments.
Conservation
Not endangered. Extensively bred for ornamental trade globally.
Lifespan
Can live up to 20–25 years or more with proper care.
Fun Fact
Also known as “Dragon Koi” due to their flowing fins that resemble mythical dragons flying through water.
Diet
Omnivorous – feed on flakes, pellets, insects, plant matter, and algae.
Average Size
Can grow up to 36 inches (91 cm) in large, spacious ponds.
Location / Placement info
Displayed in the Coastal Reef Exhibit, near the Ocean-View Tunnel
FAQ
What is the lifespan of a Butterfly Koi?
They can live up to 20–25 years, and some even longer in ideal pond conditions.
What do Butterfly Koi eat?
They are omnivorous, eating pellets, vegetables, algae, insects, and fruits.
Are Butterfly Koi aggressive?
No, they are very peaceful and social, often friendly toward humans.
What is the ideal tank or pond size for them?
For long-term care, a minimum 1000-gallon pond is ideal. For short-term aquarium care, at least 100 gallons.
Do they need a specific environment?
Yes, they thrive in outdoor ponds with aeration, good filtration, and clean water with stable temperatures.
How big do Butterfly Koi grow?
They can grow up to 24–36 inches (60–90 cm) in length.