Guide to Showa Sanshoku Koi Patterns, Care, Size, Diet & Costs 2025 Koi fish have a rich history spanning thousands of years, with the modern breeding practices of koi carp originating in Japan and China around the 4th century. Scientific evidence, particularly from mtDNA sequencing, supports the widely accepted belief that koi are descendants of … Continue reading Showa koi Sanshoku 2025 Guide: Mastering the Art of Appreciating and Raising These Exquisite Koi Fish