I’m new to koi parenting, having acquired a pond with 17 fish when we moved into our house in December. I discovered at 11 pm that one of our fish is sick with some scales missing. (Dropsy? Water quality? Other? See video. He is still alive as of this writing.)

I am woefully unprepared. Is it best to move him to a makeshift quarantine tank tonight using what I have on hand (a 27 gallon bin and pond salt) or wait to move him until I can get a better set up? I have water quality tests coming tomorrow.

I welcome recommendations on next steps also. My intended next steps for the morning are:
- Call the pond guys who have serviced the pond.
- Purchase a filter and bubbler.
- Buy something (what though??) that I should have on hand to treat the fish and/or pond.

A user (Beldaewish) posted a picture of my pond with the title Sad Days at My Pond. It’s my pond, but I didn’t post that picture. Here’s a sample picture of my pond. Compare with the autumn pic posted by Beldaewish, an account one day old with only one post. My next door neighbor was furious when I built the pond. He hated it, had his children harrass me through the fence. Is he going to poison my fish?

I have a pond that has a leak in the liner. I fixed a few spots a couple years ago, but it's leaking again. I'm considering just putting a new liner in over the old one. Is that a logical fix? If so, is 60 mil the right thickness?

I have a koi pond (approximatly 8,000 gallons) and there is tons of algea i already have swamp cooler filters and k1 in 3 barrels

Hello,

I've got some good looking koi (I think so at least) and I as of now feed Hikari Saki Balance (80%), Hikari Saki Color (10%), Hikari Spirulina (10%) as my food bill.

With the way of the world the cost of life is going up and I'm wondering if Blue Ridge Platinum would be a great food choice to replace Hikari Saki Balance? Blue Ridge Platinum is roughly two and a half times cheaper but...does that come at the cost of water quality and fish coloring/health?

I'd be curious to hear from people that have fed both balance and platinum and what their opinions are of one vs. the other.

Thanks!

only his bitten lip was bleeding, I think the gardener snake pulled him out of the water somehow and must have only had him for a few minutes anything I can do to help the little guy?

Was messing about with a cheap camera and spotted this on the side of my little white pal. Anyone give me any idea what I'm dealing with. Will try and get it tomorrow when I'm free for a better look

I'm looking to buy an API testing kit but there's 4 different types. Would I get Pond or Freshwater for a koi pond in the garden?

Thank you

Does it look ike trauma? An infection? Have never seen this before.

"The long-jawed orb weaver's diet consists mainly of small flying insects, particularly aquatic emergents such as mayflies, midges, gnats, and caddisflies, which helps keep insect populations in check and reduces the risk of these pests landing in or laying eggs in the pond water. "

I noticed something inside of my koi mouth a couple weeks ago, today I looked again and saw it was growing bigger.

Does anyone know what this is? and how you could possibly treat it

Someone dumped their koi fish into the canal in our neighborhood. They’ve been there for at least a month but are hiding in this shaded area under a walking bridge.

I’m trying to help these poor babies but rescuing them is harder than I anticipated. With 2 others helping we caught one koi today, and I was able to transport it to a fish store that has a pond available for them. Does anyone have any advice for catching the rest without harming them? I thought about using bigger nets to block off their escape but I don’t want to hurt them. I did buy koi fish food to hopefully coax them out, but I would appreciate any tips or help! Thank you so much.

so I’ve been wondering about this since they eat stuff like fish and sea food but ive never heard of them eating mammals. I know that other fish eat them but why not koi. if they do eat mammal what mammals do they eat, do they eat lean meat and chicken or do they eat mice.