Activity Stream

Looking to buy highfin shark in Socal, please let me know where to buy them.

My Hariwake female and Beni Kikokuryu and Asagi males started spawning around 9 am. They are big koi. So they may go for a while. My plans A and...

I was asked to scrape and scope some fish yesterday in a pond experiencing mass die off after introducing new koi from an auction with no quarantine....

Hello Koiphen Family, I have an indoor 8'x8' pond now. Is it worth it if I upgrade it to 8'x10'? This is the max I can build. Thank you,

Hey guys. I started a small (~300 gallon) pond/water garden last year. It has a 50 gallon bog filter. Current water temp is 75F. Last year, I put a...

Hello, I’m new to owning Koi and I just added 5 into my 1500 liter pond over the weekend and today after they had acclimatized to the new...

I am rebuilding a pre-existing Koi pond that came with the house I purchased 3 years ago. The liner was cut off below soil level, and it did not have...

Tried something new. Wanted to see I could raise koi fry. But goldfish spawned 1st so tried those eggs 1st to see if I could raise them. Caught eggs...

Hello, I’ve been working to rehab one of my dad’s koi that we found swimming on its side in our pond. About three days ago, I took to r/koi on Reddit...

I am having issues with flukes again. Have a few baby fish (1-1 1/2 inch) in my pond and I want to make sure fluke m is safe. Is it? Pond 4040...

Hello members of the forum I've been racking my brain regarding a diy pond filter I'm building but I've exhausted myself on the issue so I've come...

We are on our second spawning this year. The first was rather mild, but this one the last couple days has been extremely violent. Some of the Koi are...

Hello all! I've gotten my pond square for water quality management. Even with spawning. Things look great. I am in a mildly cool climate. I...

Hello friends: Once I visited a koi hobbyist who had perfect carpet algae in his pond. It looked like newly mewed lawn, and it was about 5 cm...

For the past two months my leaf trap and skimmer have developed a ton of this plant matter in them making me cleans both several times a day. My...

🧵URGENT: Koi Showing Stress, One-Sided Gill Breathing, Sitting at Bottom — Need Advice 🐟 Hello Koiphen Community, I'm reaching out after a very...

https://koiclubofsandiego.org/resources/EmailTemplates/June%202025%20KCSD%20Newsletter/index_preview.html

Hi everyone, I’m looking for some help with my koi pond. I’ve attached rendered perspectives showing the layout and system, including the filtration...

:yes: Mystic Koi http://inlandkoisociety.org/Newsletters/05-2025IKSNewsletter.pdf ...

Hello, So a bit of an unfortunate story. I have built a 12' x4' x 4' pond, roughly 1200 gallons above ground with poured concrete slab and CMU...

Apologizes for just dropping by to ask questions; I feel guilty that I have nothing to contribute :( ...except questions due to my inexperience. ...

Hello friends: I have over-wintered my koi indoors, and the water temperature has been 17-19 centigrade all through the winter. Earlier they...

Having only females or only males works. But as they say, it only takes one mistake. Also a female may sometimes, though rare, release their eggs...

We have a pond that is about 12 feet by 8 feet and about 3 1/2 feet deep. Somewhere between 2000 and 2500 gallons. We have a skimmer, bottom drain,...

I thought about sending Charles a PM on this question, but I know there are others here with some IT experience that may have thoughts on this ... ...

Hi all, I'm very new to the koi hobby but have been doing tons of research. Before doing said research, I bought a few small koi (4-8" tosai) and put...