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Koi pond question, as it pertains to the cold weather

Posted on 1/1/18 at 6:54 pm
Posted by LSUGrad9295
Baton Rouge
Member since May 2007
33482 posts
Posted on 1/1/18 at 6:54 pm
Neighbor (BR) has a koi fish pond outside, probably about 5 feet by 4 feet, and about 3 feet deep. He runs a filter and there is a waterfall that flows continuously into the pond. The question is this: will the predicted cold weather, with lows of 15-19 degrees, cause the waterfall to freeze? Should he turn off the filter overnight just to be sure?
Posted by Roll Tide Ravens
Birmingham, AL
Member since Nov 2015
42420 posts
Posted on 1/1/18 at 7:01 pm to
Posted by aVatiger
Water
Member since Jan 2006
27967 posts
Posted on 1/1/18 at 7:01 pm to
Does the filter also work as an aerator?
Posted by TigerFanatic99
South Bend, Indiana
Member since Jan 2007
27587 posts
Posted on 1/1/18 at 7:03 pm to
They will be fine as long as that waterfall keeps running. Tell him to make sure the pump for the waterfall is turned up to max. He will likely see a wall of water in front of the fall, but it will still be flowing under. That will be enough for them.
Posted by jefforize
Member since Feb 2008
44094 posts
Posted on 1/1/18 at 7:03 pm to
Fry em up and eat em, like that one baw on here who fed his son a koi filet
Posted by ElectricWizard0
Member since Jul 2017
2702 posts
Posted on 1/1/18 at 7:04 pm to
Was wondering how long until this was posted. Was not disappointed lol
Posted by Jake88
Member since Apr 2005
68234 posts
Posted on 1/1/18 at 7:04 pm to
This is a new one. Usually dogs. Either tell him he's a pos or go save the koi from death.
Posted by Walt OReilly
Poplarville, MS
Member since Oct 2005
124420 posts
Posted on 1/1/18 at 7:04 pm to
He needs to turn it off and bring the koi inside
Posted by KirkLazarus
Member since Aug 2017
3574 posts
Posted on 1/1/18 at 7:05 pm to
Don't worry about, koi freeze well
Posted by Rebel
Graceland
Member since Jan 2005
131380 posts
Posted on 1/1/18 at 7:06 pm to
both of my tubs are full of koi right now.

Posted by LSUGrad9295
Baton Rouge
Member since May 2007
33482 posts
Posted on 1/1/18 at 7:09 pm to
quote:

Does the filter also work as an aerator?


Not sure. It's a little motorized thing that is under water...
Posted by Eightballjacket
Member since Jan 2016
7314 posts
Posted on 1/1/18 at 7:09 pm to
I doubt the waterfall will freeze. I have a waterfall as a return for my pool and it's never frozen even when it's been in the 20s.
Posted by LSUGrad9295
Baton Rouge
Member since May 2007
33482 posts
Posted on 1/1/18 at 7:10 pm to
quote:

He needs to turn it off and bring the koi inside


I enjoyed all the smartass responses, but for some reason this was my favorite...
Posted by Jones
Member since Oct 2005
90510 posts
Posted on 1/1/18 at 7:10 pm to
Just leave it as it is.

If he has proper flow, the water will not freeze. Even if it freezes, the koi can live under the ice.

They also need very little to no food at these temps.

My koi basically just sleep all day right now
Posted by LSUGrad9295
Baton Rouge
Member since May 2007
33482 posts
Posted on 1/1/18 at 7:11 pm to
quote:

I doubt the waterfall will freeze. I have a waterfall as a return for my pool and it's never frozen even when it's been in the 20s.



Seems reasonable. From what we can gather, as long as the waterfall is flowing, then everything is ok.
Posted by OWLFAN86
The OT has made me richer
Member since Jun 2004
175893 posts
Posted on 1/1/18 at 7:12 pm to
quote:

Rebel

do you like frozen fishsticks ?
Posted by LSUGrad9295
Baton Rouge
Member since May 2007
33482 posts
Posted on 1/1/18 at 7:13 pm to
quote:


If he has proper flow, the water will not freeze. Even if it freezes, the koi can live under the ice.


I think his biggest fear is the waterfall freezing and somehow screwing up his general plumbing and having a pipe bust.
Posted by Rebel
Graceland
Member since Jan 2005
131380 posts
Posted on 1/1/18 at 7:16 pm to
quote:

do you like frozen fishsticks ?




Not really. I'm Catholic. I was force fed them most Fridays growing up.

Posted by OWLFAN86
The OT has made me richer
Member since Jun 2004
175893 posts
Posted on 1/1/18 at 7:20 pm to
hahaaha, still gay
Posted by Jones
Member since Oct 2005
90510 posts
Posted on 1/1/18 at 7:21 pm to
Unless his water flow is close to a trickle, it wont freeze.

Depending on the filter, he should have a diversion switch to get the water straight back into the pond and avoid the waterfall.

Im assuming he has plants in it and theyre acting like a filter already. Just turn the whole system off if he is worried about the pipes.
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