| Right you are! Fry is an English term. Fingerling is another. These are descriptive words to describe stages of development more than references to age. In a more science oriented observation of koi/carp we have : 1) egg 2) larvae ( hatched but with yolk sac attached. A three or four day life form. All organs are not fully formed) 3) fry ( the hunting stage where active predation begins/happens as the organs all work for normal function) 4) Juvenile koi- all pre-sexually mature fish 5) mature koi- adult koi capable of reproduction. - JR |