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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. Is Saki Hikari still the best? - Koiphen.com

    Jan 14, 2021 · And you well enjoy your koi regardless of what quality food you choose. Genetics and koi husbandry is the key. The debate of what koi food is the best is a silly debate. As …

  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 …

  4. Can hybrids have barbs. - Koiphen.com

    Oct 16, 2017 · Well, koi have two pair of barbels which are usually much more prominent and this fish only has one pair. He is 4 years old and no bigger than my largest Comet at about 11" not …

  5. Main Forum - Koiphen.com

    Apr 20, 2021 · Forum: Main Forum Post your Koi, Goldfish, as well as other Pond related questions for discussion

  6. 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.

  7. 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 …

  8. 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 …

  9. How much DE should I add in my 20,000 gallon pond?

    Sep 15, 2017 · How much DE should I add in my 20,000 gallon pond? I have a 6 feet deep 30x30 koi pond with 2 waterfalls and I want to add some Diatomaceous earth in the pond but have no …

  10. Adding WHITE VINEGAR to lower PH - OK? Yes or No?

    Jun 25, 2022 · I have a 5,000 gallon koi pond. The PH reading was about 8.8 using an API high range test kit. I added about 1 1/4 cups white vinegar to the pond. Is this ok or are all of the …