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  1. #1
    Just an Egg
    Join Date
    Feb 2016
    Location
    Humpty Doo NT
    Posts
    58

    Nitrate magically disappeared?

    Ok, I'm confused. My tank was cycled well before I got my 9 discus. Since the arrival of the discus my nitrate reading has been a max of 5 ppm, ammonia and nitrite 0. I do the wc when the nitrate gets to 5 ppm. Yesterday the tank again read 5 ppm of nitrate. I was going to bring fwd a wc today however on testing today I've got zero nitrate. Tested it twice to be certain and tested my other tank which tested 5 ppm. Is it possible for nitrate to disappear like this? Only other difference is the driftwood are now releasing tannins into the tank? Haven't changed my feeding schedule at all (4 small meals per day)

  2. #2
    Wrigglers
    Join Date
    Aug 2014
    Location
    S.E Melbourne VIC
    Posts
    267
    What is the make of your test kit , is it API ?
    sayid

  3. #3
    Just an Egg
    Join Date
    Feb 2016
    Location
    Humpty Doo NT
    Posts
    58
    Yes Sayid, API. Is there issues with this test kit?

  4. #4
    Wrigglers
    Join Date
    Aug 2014
    Location
    S.E Melbourne VIC
    Posts
    267
    No there is not any thing wrong.i just wanted to point out that when measuring nitrate especially you have to adhere to exact direction of the test method, i.e shaking of bottle 1 foe 30 sec before application also shaking of the mixture for 60 sec and then wait for 5 min .
    avoiding that will give you false very low figures .

  5. #5
    Just an Egg
    Join Date
    Feb 2016
    Location
    Humpty Doo NT
    Posts
    58
    Yep, been following those instructions religiously but reckon I mustn't have shaken 2 long enough as this morning got a read of 5 ppm so false readings. Better check my other tank as if it read at 5 y/day then it's probably much higher than that.

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