Ph swing ranges

Discussion in 'Reef Chemistry' started by L/B Block, Dec 17, 2017.

  1. L/B Block

    L/B Block Supporting Member

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    Curious to what people have in respects to their daily high/lows and what is considered a “good swing” range?
    If late 8.05/8.15.
    Tempted to throw some BRS CO2 absorbent media with a Neptune solient valve to lock the PH at 8.25 (or 8.3) and keep it consistent .
    Not sure if worth the price of the media and the set up time. Would keeping the PH at a consistent value ph pay off dividends in respects to coral growth (and perhaps some algae reduction)
    Curious to hear from others on their ph values and the concept above.


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  2. daddio

    daddio Supporting Member

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    My PH range is 8.25-8.45
     
  3. L/B Block

    L/B Block Supporting Member

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    You ever see issues with alk/calc dropping?


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  4. Bruce Spiegelman

    Bruce Spiegelman BOD

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    I'm 7.8 to 8.0 in the 120 gallon.
     
  5. scuzy

    scuzy Supporting Member

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    Mine around 7.9-8.1 cause of carx. I dose kalk in my ATO to maintain my ph


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  6. Ibn

    Ibn Supporting Member

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    7.87 - 8.21.
     
  7. daddio

    daddio Supporting Member

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    I am still fine tuning my Kalk/vinegar
     
  8. capescuba

    capescuba Supporting Member

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    I am about to start my drip this evening based on your notes too :)
     
  9. daddio

    daddio Supporting Member

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    But your tank is new, do you even need to start dosing?
     
  10. Bruce Spiegelman

    Bruce Spiegelman BOD

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    I'm dosing 75 ml a day in my new tank and I keep having to bump it up.
     
  11. daddio

    daddio Supporting Member

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    Well I guess I learnt sumthin today:)
     
  12. capescuba

    capescuba Supporting Member

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    I want to start adding kalk and mg. Might be "new" but was from a pre-cycled up and running system, so I already have a bio load, corals, clam, Anems etc .....
     
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  13. Bruce Spiegelman

    Bruce Spiegelman BOD

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    In all fairness the tank is a new set-up, but I had grown out corals for it for almost a year in a frag tank which were then moved over when the tank was ready. So while it's new it has a lot of established corals with needs.
     
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  14. JVU

    JVU Supporting Member

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    Check out this short R2R thread, in particular the detailed response from Randy Holmes-Farley with links to his extremely helpful articles:

    https://www.reef2reef.com/threads/typical-ph-swing.179762/

    My range is 8.13-8.25 or so, and I’m not aware of any proven benefits from having it more stable.
     
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  15. Bruce Spiegelman

    Bruce Spiegelman BOD

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    My frag tank swung between 7.8 (sometimes lower) and 8.5 and never hurt a thing that I could tell. I actually have the PH probe out of that ank now and have for a while. I jusat really don't care.
     
  16. yellojello

    yellojello Supporting Member

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    I'm around 8.0 to 8.2. I only started tracking pH about a year ago for the heck of it since I had a port there on the apex. Never needed it the six years before that on the same system. However, now it's a safeguard for the newly added calcium reactor if it were to fail.
     
  17. Ranjib Dey

    Ranjib Dey Webmaster

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    7.8 -> 8.2
     
  18. Ranjib Dey

    Ranjib Dey Webmaster

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    What are you trying to grow? Acros?
     
  19. L/B Block

    L/B Block Supporting Member

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    Article definitely informative. Thanks. His point was keeping it at 7.9 was potentially more damaging than keeping it at a range that crossed 8. However if PH was kept at constant level was kept at...8.25 or so with some CO2 absorption media and a solenoid valve to cap it would that be different?
    Might have to jump over to r2r to ask him!

    LB


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  20. daddio

    daddio Supporting Member

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    What I gathered from my research is that as long as you keep PH in a good range and it doesn't swing huge - forget about it
     

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