We had a very deep pond at 9200’ in the mountains of Colorado.
The koi wintered over.
No heron in the Sangre de Cristo mountains …at least at that altitude.

Good luck.


------
Sara Mattes




> On Dec 27, 2023, at 10:15 AM, Joanna Owen Schmergel via Lincoln 
> <[email protected]> wrote:
> 
> Also if the pond is not deep enough (ours is 4.5’ deep) then heron will be 
> able to wade and hunt them voraciously.
> 
> With a shallow pond it also makes it much easier for raptors to hunt them. 
> 
> 
> Sent from Yahoo Mail for iPhone 
> <https://mail.onelink.me/107872968?pid=nativeplacement&c=Global_Acquisition_YMktg_315_Internal_EmailSignature&af_sub1=Acquisition&af_sub2=Global_YMktg&af_sub3=&af_sub4=100000604&af_sub5=EmailSignature__Static_>
> 
> On Wednesday, December 27, 2023, 10:13 AM, Rich Rosenbaum <[email protected]> 
> wrote:
> 
> A couple of koi notes (from experience):
> They can slowly grow quite large (up to 3')
> If the pool is less than 3'-4' deep it runs the risk of completely freezing 
> in the winter; either a pond heater has to be added or the koi brought indoors
> koi are relatively 'dirty' fish for their size; some kind of filtration is 
> often needed
> One interesting fact is that koi kept in ideal conditions can outlive their 
> owner.
> 
> Rich
> 
> 
> On Wed, Dec 27, 2023 at 8:47 AM Garrick Niemiec <[email protected] 
> <mailto:[email protected]>> wrote:
> We have a very modest reflection pool off our entry with a few field stones 
> and bubbler.  In warm months a few flowering plants.
> 
> I'm planning to add a few koi next spring and am currently in the "discovery" 
> phase.
> 
> If anyone has a koi pond in Lincoln and would be willing to share experience 
> please let me know.
> 
> G
> 
> 
> 
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