ph reading..fishless cycle - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 5 Old 07-17-2012, 12:08 AM Thread Starter
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ph reading..fishless cycle

judging by the readings..it looks all normal to me..3 day cycle..would like someones opinion
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post #2 of 5 Old 07-17-2012, 01:20 AM
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The ph shouldn't change during a cycle, your looking for ammonia nitrite and nitrate levels

That would make sense. Haven't you heard? We make yogurt, not sense.

~My Boss

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post #3 of 5 Old 07-17-2012, 06:59 AM
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I agree. I hope this is a no-fish cycle, particularly with a high pH.
"What this means is, in basic water (pH higher then 7.0) it’s possible for less harmful ammonium to convert into dangerous ammonia."

Ph & Ammonia | Betta Fish Care
Also, your ammonia is 0, which is normal at the beginning of a cycle or once nitrites have started to accumulate. The friendly bacteria that consume ammonia will slowly reproduce and convert the ammonia to nitrite, which is also more toxic at high pH.

In addition,
".... freely-suspended cells had a pH optimum of 7.5 and a pH minimum of 6, which was reduced to 5.5 at lower initial nitrite concentrations."
This bacteria is of the Nitrobacter family, that apparently converts nitrite to nitrate, but I think the information is about the same for our bacteria.

Steven

Last edited by equatics; 07-17-2012 at 07:04 AM.
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post #4 of 5 Old 07-17-2012, 06:17 PM Thread Starter
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i did read if it gets to 6ppm it will stall my cycle..what do i do to bring it back up..if it does
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post #5 of 5 Old 07-17-2012, 07:10 PM
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Just keep your filter running and it will be all right. The pH doesn't change during a cycle - I wouldn't even bother testing it, or maybe just once a week if you want. If it does start to change, you can always ask about it then. Write down your current pH and use it to check when you test. I do hear that temperature a little higher than normal is more optimal.

If you want to understand the way the cycle works, have a look at this graphic:

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