Easy Ways to Tell if a Koi Is Male or Female
Figuring out how to tell if a koi is male or female is actually a lot harder than you'd think, especially if the fish are still young. You can't just glance at them and know right away; it takes a bit of a trained eye and knowing exactly which physical traits to look for. Most of the time, you won't be able to be 100% sure until the fish reaches maturity, which usually happens around the three-year mark or when they get to be about 10 to 12 inches long. ...