my fish frooze in the pond with ice all winter up to minus 9 some days not getting above minus 3 good old central otago, however for the last week or so the temp has been getting up to five or so today it managed to get to 18 i guess summer is coming
my fish are all fine, as long as you don't break the ice. i guess they hibenate. who knows? but this is what happens to fish in ponds down here, as long as you don't put them into the pond just before winter they survive.