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  1. #1
    Senior Member Flame*Angel's Avatar
    Join Date
    Oct 2003

    Things that cause pH to go down

    I've been discovering a number of things that can lower pH recently that I wasn't aware of. I thought it might be helpful to share what I've learned and it would be great if others could add to the list as well.

    low oxygen
    stresscoat & possibly other medications
    turning off your skimmer
    too high alkalinity
    too low alkalinity

  2. #2
    Senior Member Andy's Avatar
    Join Date
    May 2003
    How bout using Fe-based phosphate removers such as ROWAphos.

  3. #3
    Senior Member tang_man_montreal's Avatar
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    Jun 2003
    Are you stating that ROWAphos recuces the pH reading, or are you asking whether it does?
    I am Homer of BORG... Prepare to be..OOOO!! DONUT!!!!!!

  4. #4
    Senior Member volitan's Avatar
    Join Date
    Dec 2003
    Well i have super high alk and my ph keeps droping down....I just put in a brand new ph probe today...hopefully it was part of the the problem..i dougt it though.....

  5. #5
    Junior Member
    Join Date
    Oct 2004
    Here's an article regarding ferrous oxide phoshate reducers.
    It explains why you may be having problems with your pH dropping when you use ROWAphos and have high alk levels.
    Hardware: 50g drilled Starboard Reef,EuroReef CS6-2,Mag7 return,2xMJ1200 pwrhds,DIY 20G sump,200w EboJager,50 lbs Miyaki LR,Tunze top-up,AE Kalk-Reactor,RO-DI
    Lighting: 2x96W Corallife PC 10,000K + actinic
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    Livestock: 2x false percs, 2x cleaner shrimp, emerald crab, scarlet hermit

  6. #6
    Senior Member reefmutt's Avatar
    Join Date
    Oct 2003
    Vince, rowa and phosban will have a lowering effect on ph, but it comes back. You probably know this by now after reading that article that Dalen posted
    By the way
    Volitan, as Flame pointed out a high alk can lower and hold the ph as well as low alk.
    Flame you shouls repost this in just getting started

    Old system torn down to make a playroom.. planning a 62x42x28 high

  7. #7
    Senior Member Andy's Avatar
    Join Date
    May 2003
    Thanks guys for stepping in. I guess I should have been clearer with my statement. Matt and Dalen. Thanks for clarifying.

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