A Koi should grow around 6 to 8 inches long in its first year. By age 3 it should be about 24 inches long. I guess that's a reasonable growth rate
a koi carp can grow as big as a pond
They will keep growing if they live in a large enough space, They may not grow as fast when they get older but they will grow almost until they die.
Koi are generally slow swimmers unless they are being preyed upon or are ill. If your koi is swimming fast or erratically, check for signs of illness or injury.
they grow bigg around 12 inches
a koi can live for hundreds of years if there maintained right. in that period of time they will grow 3 ft.
A young koi is about 3-7 inches. when they grow to adulthood, they can as long as 40 inches!
Koi can live for hundreds of years in that period of time they will grow 3 ft. it just takes them a while to get there.
25-35 years
You don't. You put it in a pond. Koi grow to over 24". To keep one in a bowl would be terribly CRUEL!
It kinda matters. Mostly 25 inches, or more.
Duckweed can grow in any water that is good enough to sustain live fish.
more than a year like 3 years