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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 …

  2. Koiphen.com - Koiphen's Koi Calculators

    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 …

  3. URGENT: Koi Showing Stress, One-Sided Gill Breathing, Sitting at …

    Jun 13, 2025 · 🧵URGENT: Koi Showing Stress, One-Sided Gill Breathing, Sitting at Bottom — Need Advice 🐟 Hello Koiphen Community, I'm reaching out after a very difficult few days with …

  4. 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 …

  5. Why are most Japanese koi obese? - koiphen.com

    Sep 7, 2018 · I think you may be seeing lower grade Koi with poorer (in Koi judging standards) body conformation. The videos are probably showing high grade show potential quality Koi. I …

  6. Activity Stream - Koiphen.com

    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 …

  7. Pond Construction and Filtration - Koiphen.com

    Mar 6, 2009 · Quick Navigation Pond Construction and Filtration Top Please Judge this Koi - Warning! For Serious Critique Please Judge this Mutt - Warning! For Less Serious Critique …

  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. …

  9. Pleco for koi pond - koiphen.com

    Jul 30, 2015 · Pleco for koi pond Hi all, I wanted to see if anyone kept plecos in with their koi and what temperature the ponds operate at. I know some people use them while rearing fry as a …

  10. Purina Aquamax 500, affordable fish food I've been using.

    Sep 21, 2022 · Forum Koi Health and Ponding Main Forum Purina Aquamax 500, affordable fish food I've been using.