I thought they may be oxygen starved and staying close to the bubbles but as soon as I walked up, they all dispersed and started acting normally.

its like a stereotype and commonly seen that in asian countries they kept ponds with koi and their water always looked pristine clear and there is always a bunch of big fat fish swimming around chilling, i wonder how tf did they do that without pumps and filters, there has to be some ancient method or something

(video is for example)

Just the evening feed! We feed 3 times a day! Morning, Lunch, Dinner! 😁 All the rain has made the pond a schoshe cloudy. No big deal!

Recently bought a house and have a toddler with one on the way. The koi pond, being 3-5 feet is a hazard in our opinion. Any info or tips is appreciated.

Watching my friends Koi pond for the week, does this behavior look normal?

Note: I’m keeping all of them regardless of their worth.

2nd note: My UV light broke when they were putting the fish in, but I have a new one arriving Monday

(Video from a couple weeks ago). It’s been a few days and I’m still feeling angry, and guilty. Short version: they were moved to a holding tank that was too small. They were out of oxygen in less than 8 hours.

I have a 10+ year old pond of approximately 8K gallons. It’s on well water with 3 falls, 2 streams, and 2 8K PH pumps.

Had 5 koi for a little over a year. They were babies, and grew to about 18”. I named them. Each had their own behavior patterns. It was fun to watch for sure.

I’m preparing the home for sale and needed to do a major project to replace a steel and stone bridge that recently collapsed, which required partially draining the pond. I wasn’t present when the koi were moved to a holding tank, which was much too small for 5 large koi - not enough surface area or enough aeration. They died overnight, which we discovered 2 days later. (The workers never checked after moving them.)

I’m beside myself. The contractor is very experienced, and should have known better. His only response was “oh my, this has never happened before. Do you want us to take them away?” - followed by him asking if we were ready to take measurements for a new pond at the new house! 🤬

I feel terribly guilty. We should have been there.

Such a nice place to sit and relax

Hi All- ethics question here: my neighbor sold her house with her koi pond. She has beautiful big, old koi. The new owners have neglected the koi and they were starting to die from lack of air; the fountain stopped. 4 beautiful, big koi died. We tried to get ahold of the old owner and left a note for the new owner- no reply. So yesterday we stole her remaining fish and moved them to our large and winterized koi pond. They seem to be doing well in there. Maybe I’m looking for validation, but did we do the right thing?

UPDATE: our neighbor finally responded. He wasn't living in the house. He wanted his fish back so we helped him with the fish expert who separated out and returned the fish to his pond. He never really thanked us for saving his fish either. At least he seems to be caring for his fish now, but that won't stop us from occassionally checking on their welfare. Thanks for all the support!

I have a approximately 2000 gallon pond with mostly open space but one ledge where the fish can be out of sight. This fellow was out in the spring and did some eating for a week or two, but then disappeared for the last month plus. His fins look like he’s been through the war. Any thoughts on what might cause this behavior? I’m guessing he was sick and was recuperating but any thoughts would be appreciated.

I've had a small (400 gallon) Koi pond in my backyard for 20+ years. I've had the same 5 very high quality Koi in the pond for over 15 years. All about 24" long.

Today, as I was backwashing the filter, I somehow left the filter in the backwash position and it completely drained my pond, killing all of my Koi. Completely my fault.

I am so shocked and devastated that even though I do not subscribe to this sub, I had to post something. I am too old to restart, and will disassemble the pond.

Since my last post got a lot of people wanting more details. I put together an album for you

When I came home from work found one of my favorite koi floating just under the ice. I found it weird that she had been swimming around about two weeks ago while all the other koi were at the bottom of the pond. I thought maybe she was egg bound but her belly doesn’t look big. She was extremely slimy and had a couple of white spots which you could see in the pictures. Should I be concerned about my other fish

Goldfish de todas las edades

For context. It's a 700 gallon outdoor pond in South Texas with probably about a dozen kois, 1 about a foot and a half and the rest about half his size or less. Pond was heated during the recent snowstorm.

I saw pinecone on this and another koi about 2 weeks ago, started Koi Prazi treatment a couple days later. The other one shows some improvement and it's swimming and eating more now but this one seeme to be a goner. Any idea which parasite is it and how can I treat it besides Koi Prazi? It looks like a 2-inch long red worm hanging off the wound

As the title implies, my grandparents are getting too elderly to humanely care for this fish as it is the last left. Would like to ID it to accurately estimate its worth as my grandfather paid (likely overpaid) for it 5 years ago. No paperwork when it was bought but it was sold as a Koi.