"Joel" wrote in message
5...
I have a pond with carious types of goldfish, ranging from 2 to 6 inches,
2
are koi that are about 4 inches.

all are healthy.

Something I've noticed is a few fish are taking nips at one of the koi,
they go up to the koi's sides and what looks like its taking a nip out of
it, sometimes the fish will chase it.

It doesnt happen often, but its always this one koi and the same 2 other
fish who do the nipping, one smaller and one larger then the koi.

The Koi is healthy, no cuts or anything.

Does this mean anything ?

Joel.

Probably not. It is likely normal behavior.