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Thread: Nitrifying bacteria: light or darkness?

  1. #1
    Join Date
    Oct 2004
    Land O Lakes, FL

    Nitrifying bacteria: light or darkness?

    I'm having a problem getting the bacteria that convert nitrItes to proper levels. Both of the filter "problem children" are covered, properly aerated, good flow, etc. I know that they are the last of the bacteria to develop, but they seem inordinately slow to develop. Normally bacteria prefer darkness, but somewhere in the back of my mind I have a little niggling factoid that they like light in order to establish themselves.


    Lee B.

  2. #2
    Daihonmei dick benbow's Avatar
    Join Date
    Dec 2003
    seattle, wa
    gee Lee, your use of a certain word makes me think you watch a certain program on the discovery channel!

    factoid: I run my bakki shower in full sunlight and my j-mat under cover. I don't know what bacteria likes what, but it works. maybe you need to have one of each!

    I always thought if i ever opened my own koi shop, I would use Monster Koi
    and have little helpful signs around the cash register called factoids!

  3. #3
    Join Date
    Dec 2003
    Darkness. Enough errant light and valuable surface will have competition with diatomacous (brown) algae and other less effective bacteria colonies. Perhaps you might consider seeding the filter with a commercially available culture. In general, soft water also immpedes bacteria colony growth. It shouldn't take more than 12-16 weeks to establish a filter bed.

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