01772 439300
Get in touch
Tosai (under 1 year)
Nisai (1-2 years old)
Sansai (2-3 years old)
Yonsai (3-4 years old)
Gosai (4-5 years old)
Rokusai (5-6 years old)
Nanasai (6-7 years old)
Koi Food
Koi Treatments
Pond Pumps
Pond Filtration
Pond UVs
Pond Aeration
Pond Construction
Pond Heating
Pond Electrics
Pond Water Treatments
Pond Water Testing
Pond Accessories
Koi Nets & Bowls
Microscopes
Gift Vouchers
Merchandise
Koi Books & DVD’s
Become a VIP member to enjoy exclusive pricing, earn loyalty points and receive members-only benefits every time you shop.
VIP Membership £50 per year. Discount applies while membership is active.
Welcome to our dedicated Yonsai Koi category page, where the vibrant world of Koi awaits you! Yonsai Koi, meaning “a Koi in its fourth year of life” in Japanese terms.
See the detailed descriptions of our Yonsai Koi below.
