Raising pH

Discussion in 'Water Chemistry' started by Kevin_E, Apr 5, 2014.

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  1. Kevin_E

    Kevin_E Giant Squid

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    I need to raise my pH and I am not sure how.

    My alkalinity is 3.5 meq/l or 10 dKH.

    My pH is reading 7.61 this morning (7.53 last night). It has been this low for 3-4 weeks and all of my SPS have slowly faded to their death. These readings were measured by a laboratory grade multi-thousand dollar YSI unit calibrated with 3 standard solutions.

    I believe this happened when sheetrock fell into my tank while I was switching from halides and hanging LEDs.
     
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  3. Av8Bluewater

    Av8Bluewater Giant Squid

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    Hmm.
    What is your method of adding alk/Calcium?

    If using baking soda switch to Soda Ash. ( or bake the baking soda)

    Some things that pop in my head:
    Small room that needs more oxygen in Winter?
    If temperature allows open a window and get some fresh air in the room.

    Calcium reactor may lower PH.
    Is your refugium on reverse lighting schedule?
     
  4. Kevin_E

    Kevin_E Giant Squid

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    Not adding anything right now. Haven't been for a month plus since everything began to STN.

    It is a small room, but wasn't an issue before the sheetrock dust fell in.

    No calcium reactor.

    I may just need to do water changes to reduce the hydrogen ions.
     
  5. rayjay

    rayjay Gigas Clam

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    Poor gas exchange at the surface of the water.
    Needs better surface agitation and/or less CO2 laden air at the surface.
     
  6. DSC reef

    DSC reef Giant Squid

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    Go grab some balance by aquavitro, it's designed to raise ph without affecting the other 3 params. I've been using the entire line for years and love it.
     
  7. Kevin_E

    Kevin_E Giant Squid

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    Like I said, that wasn't an issue before. My SPS were thriving in that same room before the sheet rock dust fell in.
     
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  9. Kevin_E

    Kevin_E Giant Squid

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    I'll have to give this a try if my water change doesn't help.
     
  10. Billme

    Billme Eyelash Blennie

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    I'm not sure on this Kevin, but isn't sheet rock basically calcium carbonate (chalk). Can you test Ph of the sheet rock?
     
  11. Kevin_E

    Kevin_E Giant Squid

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    I believe it's made with gypsum (CaSO4), which is often used to lower pH in soil by gardeners/farmers.
     
  12. 2in10

    2in10 Super Moderator Staff Member

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    Sheet rock is gypsum. You probably should do multiple water changes to get the gypsum out of your water. I think the Aquavitro product could be a good way to go with doing the water changes to hopefully help neutralize the gypsum's effect.