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  • Page 2 of 2 FirstFirst 12
    Results 21 to 24 of 24

    Thread: Filter Crash, Part Two - Need Some Experts!

    1. #21
      Charlottekoi is offline Junior Member
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      Thanks Rick. I’ve been using the card for a week so it’s broken in. My PH is 8.3 so good there. I did a windex vapor test on the card and it reads “toxic” just fine. And when I switch between tap and pond water I give the card 20-30 minutes for the reading to change/adjust. It’s just strange that when I test pond water and then add a healthy dose of SAFE to the small jar, it never goes to yellow or the safe reading.

    2. #22
      icu2's Avatar
      icu2 is online now Administrator ~ WWKC Treasurer
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      Quote Originally Posted by RickF View Post
      The card does not change instantaneously. It takes at least a day for it to equilibrate. That is not a problem in use, because free ammonia concentrations change gradually, but if you put the card in a jar of water with or without free ammonia, you need to wait at least 24 hours (48 hours is better) to get an accurate reading. Also, the cards do not work if the pH is below 7.0, but that is rarely an issue in koi ponds.

      Sent from my SM-G960U using Tapatalk
      Quote Originally Posted by Charlottekoi View Post
      Thanks Rick. I’ve been using the card for a week so it’s broken in. My PH is 8.3 so good there. I did a windex vapor test on the card and it reads “toxic” just fine. And when I switch between tap and pond water I give the card 20-30 minutes for the reading to change/adjust. It’s just strange that when I test pond water and then add a healthy dose of SAFE to the small jar, it never goes to yellow or the safe reading.
      I don't see anything in Rick's post that says there's a "break in" period but only that it takes
      24-48 hours to register correctly.

      I've never used the Seachem Card but have chosen to just redose every 48 hours regardlessly.
      From what I've read it's very hard to overdose so I don't worry too much about that.
      --Steve


      In the beginning of a change the patriot is a scarce man, and brave,
      and hated and scorned. When his cause succeeds, the timid join him,
      for then it costs nothing to be a patriot.

      ---Mark Twain

    3. #23
      RickF's Avatar
      RickF is offline Senior Member ~ Koi Health Care Committee Member
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      Quote Originally Posted by Charlottekoi View Post
      Thanks Rick. Iíve been using the card for a week so itís broken in. My PH is 8.3 so good there. I did a windex vapor test on the card and it reads ďtoxicĒ just fine. And when I switch between tap and pond water I give the card 20-30 minutes for the reading to change/adjust. Itís just strange that when I test pond water and then add a healthy dose of SAFE to the small jar, it never goes to yellow or the safe reading.
      20 to 30 minutes is a lot shorter than 24 to 48 hours. The card is not designed to measure a rapid change in concentration. It is designed for the gradual change that occurs in the pond or aquarium.

      Sent from my SM-G960U using Tapatalk

      "Our goal is to assist with emergency and Koi health issues, as well as educate on best practices. Please help us gain a clear picture by giving the original poster time to answer our questions before offering opinions and suggested treatments."

    4. #24
      GoldieGirl's Avatar
      GoldieGirl is online now Senior Member
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      Quote Originally Posted by RickF View Post
      20 to 30 minutes is a lot shorter than 24 to 48 hours. The card is not designed to measure a rapid change in concentration. It is designed for the gradual change that occurs in the pond or aquarium.

      Sent from my SM-G960U using Tapatalk
      The cards that I used were in hanging the tanks for weeks with ammonia added daily to cycle and still never showed a reading. I agree with Steve - just redose every 48 hours. I believe the cards are a flawed technology.
      ________________________________________
      Cheers,
      Ci


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