Very fast. I don't think their speed has ever been measured/calculated accurately though.
The ones that swim
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.
forward forward
fast
Yes you can swim in it and they won't hurt you.
Maybe it wants a massage it is very common for all fish
Anything with a face should be looking inward and almost never outwards, and with Koi, they ALWAYS go upstream and never downstream.
Of course, a desert pup fish can swim.
YES!!!!! The oils on your skin will get into the water, and the fish will "breath" it in and it's kind of toxic!
as fast as a swimming pork
a snake can swim about as fast as a row Boat at traveling comfortable pace
12kg