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  1. Koiphen.com

    Aug 16, 2025 · As the largest Koi and pond community on the internet, the forum provides help and advice on pond building as well as Japanese Koi and Goldfish care including disease prevention and …

  2. PH, KH And GH in Depth - Koiphen.com

    Jun 14, 2013 · The Japanese koi breeders have relatively low KH and a pH near 7.0; therefore, some koi kichi believe that since the Japanese breeders produce the best koi, it follows that high KH and high …

  3. Roddy’s current potassium permanganate practice

    Jun 27, 2021 · Roddy’s current potassium permanganate practice After removing 55 of the koi in our pond, then adding 12 new carefully selected small koi from a top supplier, I am successfully using my …

  4. Koi fish not eating for weeks - Koiphen.com

    Jan 23, 2019 · Hi my koi fish has not been eating for weeks now and I don’t know what to do I have been changing 10 gallons every day and treating the tank with prime. I also cleaned my main filter …

  5. Flow rate through a DIY 3 Barrel Drum Filter system.

    Sep 10, 2022 · Forum Pond Construction & Filtration Pond Construction and Filtration Flow rate through a DIY 3 Barrel Drum Filter system.

  6. What causes red fins and body on koi? - Koiphen.com

    Apr 11, 2010 · The koi loose apetite from a parasite infection? and How infectious is it? The one fish has been showing these syptoms for almost three week, since the Orlando Show.

  7. What are the code requirements for building a koi pond in your area

    Apr 23, 2017 · most cities do not have codes strictly for a koi pond, they use pool code requirements to apply to ponds. I had a pool permit for my 12,000 gallon pond, they inspected the rebar spacing, …

  8. Using Potassium Permanganate - Koiphen.com

    Apr 22, 2020 · On the top of this page is a KOI CALCULATOR that will help you to figure out your dosage. Here is a copy, and paste with a hydrogen peroxide formula at the end of the reading. Good …

  9. my koi fry are not growing as quickly as they should

    Jun 20, 2022 · My koi fry are not growing very much. There are 80+ fry we harvested from our small 60 gallon outdoor pond (in Los Angeles). The male and female are over 1 years old and quite large 12 …

  10. Koi skin turning pink - koiphen.com

    May 11, 2022 · My koi that has very white shimmery scales seems to be turning pink, almost like internal bleeding. He has occasionally gone off by himself or stayed low to the bottom of the pond but mostly …