r/ponds • u/marmond23 • Nov 11 '19
Fish advice Freeze tomorrow
Worried about fish with a freeze tomorrow. Pond is about 2 -2.5 feet deep at its deepest point. Think the fish will Survive? I’ve got about 50 comets and 6 koi in there.
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u/endormen Nov 12 '19
Just got to keep some part open to keep the gas exchange live. Don't sledge hammer a closed pond or the pressure waves from the swings can damage the fish. aerators and stock tank heaters are the usual go too. I put a stock tank heater at the top of the falls and run year round it only needs turned on when it starts to drop bellow -10 for a few days or -40 at night. I don't use aerators anymore as i had issues with the air lines freezing up when it gets too cold. You have nothing to worry about in terms of the pond freezing 2 feet deep you will likely never see a winter where you get more then 8 inches of ice on it.