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Thread: PH shifts upon CO2 injection?????

  1. #1
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    PH shifts upon CO2 injection?????

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    Hello guys! Newbie here. Need help with info on planted tanks...

    1)I live in singapore like most of u guys...the question has anybody here successfully had fishes in a planted tank without them dying due to PH shifts...coz i notice that the PH in my planted tank shift upon CO2 injection (Pressurised system). (KH up solution used but PH shifts from 7.1 to about 6 within the next day) Please help!!

    2)How long will i be able to add fishes to the planted tank? When is the best time? [] not possible now due to the PH problem..scare of harming those fishes...
    Plant Physiology by Taiz and Zeiger

  2. #2
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    my kh is 0
    my pH swings more than 1 unit when the co2 goes on
    the fish got used to it
    no problems

  3. #3
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    DEA, thanks for your reply..by the way how long did u wait for the tank to settle before introducing fishes? Your bubble count injected per sec?
    Plant Physiology by Taiz and Zeiger

  4. #4
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    1)Use baking soda(sodium bicarbonate) to stablise the pH. If I want to keep expensive fish, I won't allow a pH crash, can be an expensive lesson.

    2)Check NO2 level. If it shot to some high level and went back to zero or negligible level, then its safe to add fish.

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