Howdy

We are just finalizing our basement bar/pond here and I have a quick
question.

What temperature should the water be at for koi. Currently we have 2
butterfly koi in our living room pond and are giving them a new home in the
basement. The upstairs pond is at 18c and downstairs might get to 15c (just
filled it this AM).

I am thinking that is OK, but just wanted other yays or nays.

Thanks
A