Koi Carp – Elegant and Long-Lived Pond and Aquarium Fish

Koi Carp are ornamental freshwater fish prized for their vibrant colors, graceful swimming, and symbolic value in many cultures. Originally bred in Japan, Koi Carp are now popular worldwide in outdoor ponds and large indoor aquariums. They are available in a variety of colors and patterns, including Kohaku (red and white), Sanke (red, white, and black), Showa, and more.

Koi are intelligent, social, and long-lived, often recognizing their caregivers and even eating from their hands. With proper care and a spacious, clean habitat, they can live for decades and grow to impressive sizes.

Key Benefits

• Available in a wide range of colors and markings

• Long lifespan, often 20+ years with good care

• Peaceful temperament and compatible with pond mates

• Adaptable to a wide range of environments

• Culturally significant and visually stunning

Suitable For

• Outdoor garden ponds or large aquariums

• Aquarists seeking show-quality fish

• Mixed pond environments with goldfish or other koi

• Fishkeepers interested in long-term pets

Feeding Instructions

Feed 1–2 times daily with floating koi pellets or sticks. Supplement diet with fresh vegetables, fruits, or occasional live foods like worms or shrimp. Avoid overfeeding, especially in colder months when metabolism slows down.

Tank/Pond Requirements

• Minimum tank size: 300 liters (larger preferred)

• Ideal for ponds with good depth and filtration

• Water temperature: 15°C to 25°C

• pH range: 6.8 to 8.0

• Require strong biological filtration and frequent water changes

• Avoid overcrowding and provide adequate swimming space

FAQs

Q: Can Koi be kept indoors?
Yes, Koi can be kept in large indoor aquariums or tubs with sufficient filtration and space, although they thrive best in outdoor ponds.

Q: How big do Koi Carp grow?
Koi can reach lengths of 18 to 36 inches, depending on their environment, genetics, and care.

Q: Are Koi aggressive?
No, Koi are peaceful fish and do well with other large, non-aggressive species like goldfish or other koi.