Very slight ammonia spikes - The Planted Tank Forum
 
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post #1 of 11 (permalink) Old 06-21-2016, 01:05 PM Thread Starter
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Very slight ammonia spikes

So my 20H has been set up for 5 months now without issue but the past couple weeks when I test parameters I'm getting .25ppm ammonia readings. Still at 0 nitrites and my nitrates are high as usual (40 or so ppm, getting some frogbit to try to correct this) and GH 3 KH 6. Any idea what could be causing this? I have been tinkering with plant layout so the substrate has been disturbed a bit, but I can't imagine by eheim 2213 is short of beneficial bacteria
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post #2 of 11 (permalink) Old 06-21-2016, 03:24 PM
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Hmm, my first guess would be a faulty testkit. When did you measure ? I guess it could be possible for a measurable spike to occur after heavy substrate disturbance or overfeeding.

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post #3 of 11 (permalink) Old 06-21-2016, 03:41 PM Thread Starter
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Hmm, my first guess would be a faulty testkit. When did you measure ? I guess it could be possible for a measurable spike to occur after heavy substrate disturbance or overfeeding.
Measured it maybe four hours after a 50% pwc. I don't believe I'm over feeding, I try to be as lean as possible. I'll keep an eye on the levels over the next couple weeks.
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post #4 of 11 (permalink) Old 06-21-2016, 04:05 PM
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Do you use Prime? API test kit?


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post #5 of 11 (permalink) Old 06-21-2016, 04:09 PM
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Did you use tap water? Is it in that?
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post #6 of 11 (permalink) Old 06-21-2016, 04:14 PM Thread Starter
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I use prime, I treat the entire tank volume during my pwc, I have a python changer. Empty 50%, add 2ml prime let it sit for like 2 minutes then fill it up. I usually wait 5-10mins to start back up my filter. Yes it's with an API kit
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post #7 of 11 (permalink) Old 06-21-2016, 08:06 PM
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Very slight ammonia spikes

Prime and API test give negative ammonia reading. Normally .25ppm.


Oh and don't let you filter sit for longer than 30 minutes. At that time period there begins to be insufficient oxygen levels and bacteria on filter media will begin to die off.

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post #8 of 11 (permalink) Old 06-21-2016, 08:34 PM Thread Starter
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Originally Posted by KC1994 View Post
Prime and API test give negative ammonia reading. Normally .25ppm.


Oh and don't let you filter sit for longer than 30 minutes. At that time period there begins to be insufficient oxygen levels and bacteria on filter media will begin to die off.

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Gotcha. If I retest tonight should I consider that accurate? I usually fill up,
Smoke a cigarette and then start it back up. 10 minutes tops. Good to know though.
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post #9 of 11 (permalink) Old 06-21-2016, 09:14 PM
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Originally Posted by KC1994 View Post
Prime and API test give negative ammonia reading. Normally .25ppm.
I agree that the Prime is doing this. I believe when Prime is used and your water has chloramine in it, the Prime seperates the chloramine into ammonia and chlorine. This is why there is an ammonia spike after a dose.
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post #10 of 11 (permalink) Old 06-21-2016, 09:19 PM
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If you dose the for water change wait 24 hours. If you dose for the whole tank it may take 48 hours. Prime is great at a false positive.


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post #11 of 11 (permalink) Old 06-21-2016, 09:27 PM Thread Starter
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Phew. Was worried I had something frustrating on my hands. I'll wait until tomorrow and retest.
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