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Results 1 to 9 of 9
  1. Default pH level rose within 1 week


    0 Not allowed!
    Not sure what caused this...
    pH level rose from 7.4 to 8.4 within 1 week.

    Eclipse 12, est. March 2013, cycled April 2013
    API Master Test kit Results:
    pH: 7.4 ( continuously, until this week), now 8.4
    Ammonia: <.25 (almost totally yellow)
    Nitrites: 0
    Nitrates: 5-10
    Temp: 74
    Water treated with Prime and temp matched before water changes.
    Water changes 25%-33% per week with gravel vacuuming each week and filter cleaning in tank water usually every week. Actually, I was cleaning it every week until I read that it was actually better to clean every other week or so. Could this have contributed to the pH rising?

    Inhabitants: 1 glofish (survivor), 3 golden white clouds, 1 white cloud
    All eating well and acting normally.
    Nothing new added to tank in over 2 months.

    Tap water pH: 7.4

    I would like to do a 50% water change now, but am concerned that this might be too rapid of a pH change?

    So, any ideas what might have caused this? The other glofish died over 2 months ago and water parameters continued as stable (see above). Can I do the 50% water change without stressing the fish?
    Last edited by Betta113; 06-09-2013 at 06:54 PM. Reason: more info added

  2. Default


    0 Not allowed!
    If you've added rock or other hardscape to the tank then that would seem to be the primary reason to me.
    20 gallon tall: empty
    29 gallon: moderately planted with 9 bloodfin tetra, 1 german blue ram, 11 glow light tetra and 1 BNP
    10 gallon QT: empty

  3. #3

    Default


    0 Not allowed!
    Something leaking calcium is the most likely cause. Gravel, rocks, other hardscape. Test with vinegar, see what reacts and remove that. If your tap is 7.4 and the tank is 8.4 you'd better do small water changes instead of a single big one.

  4. Default


    0 Not allowed!
    OK, 25% water change at 2pm, just tested and pH now 7.4...fish still acting normally...will continue to monitor...still looking for the white vinegar I bought I know its here someplace...will test when I find it...but haven't changed or added new stuff in over 2 months...
    Can temp change or higher temp affect pH?

  5. Default


    0 Not allowed!
    And, yes I rechecked the first pH test after getting the high reading.

  6. #6

    Default


    0 Not allowed!
    Quote Originally Posted by Betta113 View Post
    OK, 25% water change at 2pm, just tested and pH now 7.4...fish still acting normally...will continue to monitor...still looking for the white vinegar I bought I know its here someplace...will test when I find it...but haven't changed or added new stuff in over 2 months...
    Can temp change or higher temp affect pH?
    No, temp hardly affects ph, pressurized co2 would though.

  7. Default


    0 Not allowed!
    Retested pH, still holding at 7.4

  8. Default


    0 Not allowed!
    No pressurized CO2 (no live plants)...have aerator disk in tank, but very rarely used...read conflicting reports about possible raising or lowering effect of aeration, so still not using but will continue to monitor pH. Can only a 25% water change drop the pH this much normally?

  9. #9

    Default


    0 Not allowed!
    Too many unknowns. If there's no buffer then yes swings can be big.

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