if the bottom is mucked up, remove the fish. dont move them until the water has been
above 55oF for 10 days and the fish been on romet B or other antibiotic food for that
long. they need a functional immune system. dont fill the pond with cold water and
plunk the warmed up fish back into it. Ingrid

(MC) wrote:

I had quite a few leaves make there way into my small pond in the
fall. The water looks a little brown now. In the spring, should I do a
serious of water changes or take out the Koi and drain it completely
to clean out all the muck and everything? The pond is 1 year old. I
don't know if completely draining it will do more harm than good
(stress on fish, etc.)