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Results 21 to 30 of 35
  1. #21

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    0 Not allowed!
    Check the other cycling stickies in the Beginner Freshwater section.
    10 Gallon Beginner Tank... Journal
    40 Gallon Breeder: ... Journal
    29 Gallon: ... Journal

    “If there are no dogs in Heaven, then when I die I want to go where they went” - Will Rogers

  2. #22

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    2 Not allowed!
    Slap was up early today!

    Metalmaven, this article isn't written as a primer on cycling. At the beginning of the article there are links to the stickies slap mentions on cycling. There is one on cycling with fish in the tank, and one on fishless cycling. The latter is by far the recommended method, so if you don't yet have fish it's the way to go. Follow the links at the start of the article and you'll get the introduction you want.

  3. #23

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    2 Not allowed!
    Excellent Article! with the topics listed in proper sequence.

    Understanding How the Nitrogen Cycle works is the first step towards keeping a healthy aquarium.

  4. #24

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    1 Not allowed!
    Goldy this is an extremely interesting and eye-opening (at least for me) article! It explained SOOO much! I am going to incorporate the notion of NOT re-dosing as soon as the amm hits 0. But waiting at least 24 hrs. Sooo interesting! Thank you!!!!

    And VERY well-written, I might add...

  5. #25

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    3 Not allowed!
    Thank you SL! I started doing the research just to educate myself, but I started going more and more in depth, and eventually realized it was worth sharing with everyone :-)

    Now that I have my QT set up and cycled I'm going to try doing some quick and dirty tests to see how long bacteria can go without ammonia and how long it takes for them to recover after being starved.

  6. #26

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    0 Not allowed!
    So if you do not redose for 24-48 hours to prevent AOB population from getting too large, couldn't you also reduce the dosing of ammonia to say 1ppm to allow space for NOB growth?

  7. #27

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    1 Not allowed!
    The reason behind waiting 24 hours to redose ammonia is actually to encourage NOB growth, not to limit AOB growth. Dosing 1ppm ammonia might also work, but the problem is that I couldn't find consensus about the exact level that inhibits NOB growth. Some of the research suggested that even levels below 1ppm could inhibit them, so it sounds we might need ammonia essentially at zero to promote faster NOB growth. I triglyceride a good balance is achieved by the 24 hour waiting period.

    The one number I couldn't pin down (yet?) Is the amount of ammonia we should cycle to. In other words, how much ammonia is produced in a tank in 24 hours? I know it depends on the stocking level, but if a fully stocked tank produces, say, only 1ppm ammonia in 24 hrs, then there would be no need to cycle using 2 or 3ppm. It would shorten cycles significantly if we only had to cycle tanks to handle a maximum of 1ppm! Unfortunately this isn't something I can test without putting a lot of fish in an uncycled tank so I'm still trying to find published data on this. For now, based on our own experience here, 2-3ppm seems to be enough and I don't think cycling to levels higher than that would have any benefits.

  8. #28

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    Can''t give rep points, but great job on the diagnosis/treatment - Boundava   Sending you a geophagus to  tank you for your analytical powers! - discusluv   Happy Holidays! - Boundava   Happy Christmas! - Slaphppy7   Happy V Day! - WhistlingBadger   

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    0 Not allowed!
    I understand the not dosing part. But, if I read it right, media space can also be a limiting factor for NOB growth. Let's look at my supposition in reverse. For instance, which would cycle faster, a filter with 1 fluval biomax or the same filter with 20 biomax, assuming the dosing is 2ppm of ammonia? There's also a no dosing for 24 hour period, and everything else is the same (e.g. tank size, no lighting, etc.)
    Last edited by Rocksor; 01-08-2016 at 03:40 AM.

  9. #29

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    1 Not allowed!
    I see your point, I think: if the AOB colony grows too much, there will be little "uncolonized" space left in the media for the NOB to grow? Hmm... never thought of this. O guess it's similar to asking how much biomedia do we really need for a given size tank or ammonia level.

  10. #30

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    0 Not allowed!
    With regards to how much ammonia is released by fish, I was reading on another forum that a 12" fish and a 9" fish in a 100 gallon tank had a nitrate reading of 40ppm in 2 days. There was a post somewhere in this forum, I think, about a formula on how much ammonia was needed to produce nitrite, and how much of that nitrite turned to nitrate. If you can get those numbers, then maybe you can estimate how many 1" fish it would take to created a 12" fish.

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