We recently got a big rain storm and temperatures dropped drastically. Winter is officially here where I live. I have a 4000 gal pond - babies, medium sized and largest being about a 12". They all were doing great!
After rain all water levels were normal except higher ammonia so I reduced that. I noticed they ALL were a lot more docile and hanging at surface. They look like they might be going into hibernation or torpor? I have never experienced a winter with Koi so please share what behavior is normal. There are some babies who have not been through a winter yet.
I'd imagine they'd go to the bottom to hibernate but maybe they are not in "full" hibernation mode yet? Is it possible for them to slowly go into that 'zone' and this is why they are acting a less energized?
Please share, thank you so much!