how to identify male and female koi fish
How would you distinguish a male and a female koi
How would you distinguish a male and an a female koi by checking this
Photo taken from http://www.gardenpondforum.com/
Photos taken from http://www.koiquest.co.uk/
- Check the male kois if they have enough milt by applying gentle massage on the vent area. If the milt come out this will ensure that the males are matured and ready to spawn.
- Check the pectoral fin if it has white slight sharp stars and also male koi have larger and thicker pectoral fins.