koi

  1. T

    What are your thoughts on keeping koi in aquariums?

    I've been thinking about my two koi lately. They’ve been in the aquarium for a while, and honestly, they’re getting pretty big! I’ve been feeling like they need more space to swim and grow, so I’m considering getting a pond for them. I think they’d really enjoy having more room, and it would...
  2. H

    Was winterizing the koi fun they realized this guy was sick please help!

    Any idea what it can be? He's the only one with it? Just took him down stairs thinking about treating with Seachem KanaPlex?
  3. Arowana.hw

    For Sale  75 gallon setup

    75 gallon tank 6 koi fish 8/10/14/14/16/18 inches Fx4 canister Cascade canister Can sell all together or separately
  4. K

    Koi lumps - help please!

    Hi All - New to this forum as we are new owners of Koi fish that someone donated. Newbie owners so please be kind :) Hoping that your experience and knowledge will help us! Two of the Koi have these lumps - see pics! Another Koi seems to be developing something similar as it has a round...
  5. wilsonlin45

    Has anyone visited koi farms in Niigata Japan?

    I'm heading to Ojiya City in Japan in a couple of weeks. Hopefully I'll be right on time to catch the cherry blossoms. But what would be even better would be to stop by some of the famous koi farms in Japan. Has anyone visited these farms before? Are they available for drop in by the public...
  6. H

    I need some help with my koi!!!!

    I have my koi in the pond normally all summer but I took three of my favorite ones out to put in my 300 gallon tank since I recently took it down and has been sitting empty. All the koi in the pond are eating and they seem happy. But when I took these three out I've noticed they have red...
  7. R

    koi pond mates

    i'm planning to add some new fish for my koi pond. are the following fish suitable for a koi pond? all of my koi are big - bala shark - clown knifefish - black ghost knifefish - ID shark - Flagtail fish - Giant gourami - Oscar - Rainbow shark - Freshwater stingray
  8. H

    Can I get your opinion on above ground pound.

    So I live in Northeast Ohio where it gets pretty cold, typically it stays in the '30s but it can get in the teens. What are your thoughts about keeping above ground insulated plywood pond in my garage?
  9. Cohazard

    For Sale  Colorless Doitsu KOI?

    I have a rare colorless I believe Doitsu koi. this reminds me of my Thai orandas that have scales but lack any color of nacreous scales. growing fast and eating my tropicals, needs a new home. 4” $50
  10. D

    Help pricing Koi

    I have a friend that's looking to sell a few koi. He's looking for some advice on fair pricing. They are about 18 years old and over 24 inches. Attached below is a picture. All advice is greatly appreciated in advance.
  11. S

    Pond fish to go with Koi

    Hi guys, I am looking for suitable partner suggestions for my small koi pond - around 1000 gallon and 8ft x4 ft , weather is temperate in Southern California with occasional 50’s Any experienced pond owners who can share tips ?
  12. K

    For Sale  20 inch Yamabuki Ogon Koi

    Hey, so i have this yellow koi fish for about 2 years now but he has out grown THREE tanks, He is now in a 75 gal tank and he can barely turn. I am looking for some one to take him off my hands or might consider building a pond. But I am located in New York and it very cold out doors. I am open...
  13. K

    For Sale  20 in Koi FIsh (Yamabuki Ogon) For Sale

    Hey, so i have this yellow koi fish for about 2 years now but he has out grown THREE tanks, He is now in a 75 gal tank and he can barely turn. I am looking for some one to take him off my hands or might consider building a pond. But I am located in New York and it very cold out doors. I am open...
  14. akita

    For Sale  Bumblebee utsuri koi

    An uncommon variety, would look nice in a large tank or pond.
  15. Polypterus_36

    Golden Chinese Wels Compatibility

    I really want a golden chinese wels for my 21,000 gallon koi pond (32.5 ft by 14.5 ft by 6 ft), but I am worried about the wels eating some of my koi. I just started the pond, and I only have 2 large koi in at the moment. 1 17 inch male goshiki and 1 20 inch female showa. Would a larger...
  16. Polypterus_36

    My 20,000 Gallon Koi Pond DIY

    Hello! This is a project that I have been working on for the past few months, and I am now finally making a dedicated thread on it. I have an older style pool that I have decided to convert into a koi pond. The pool is 32.5 feet by 14.5 feet by approximately 6 feet (LxWxH). This equates to a...
  17. Polypterus_36

    Coldwater Monster Fish Compatible With Koi?

    Any suggestions for some coldwater monster fish compatible with koi? I am looking for fish that grow relatively large, but they have to be peaceful enough to live with koi and survive through Florida's "winters" without a heater. Thank you, Polypterus_36 @thebiggerthebetter
  18. C

    Koi

    We just bought a home with over 300 koi in the pool have no clue what to do with them any advice ?
  19. S

    For Sale  12" butterfly domestic koi for sale

    Hello everyone! I've had koi fish for a few years now and moved back to the valley in AZ. I was going to build a koi pond in the backyard, but with how hot, sunny, and little space we have, I've decided to sell him instead. Price is $50 and must go to a home with a pond. Pm me for more details...
  20. S

    For Sale  Large koi for sale in Ontario, Ca

    location: Ontario My grandmother is selling her house and can not take the koi and the large goldfish with her. Her pond is located in the Ontario area. The filtering system includes a Laguna clear flow 4000 with UV that feeds into a water fall buckets full of lava rock, followed by two large...
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