Quote:
Originally Posted by Agnate80700
adding the kalk in large volume soaked up seriously over-abundant levels of co2?
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AFAIK It's not affecting the amount of
CO2 really, just increasing the concentration of hydroxide or hydrogen ions temporarily. PH is a direct measure of the amount of hydrogen ions in a solution. kalkwasser is calcium
hydroxide
Quote:
window being closed making the pH drop and not the night-day fluctuation. (I didnt used to have a fluctuation, but who knows now, maybe I do)
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It's more of an issue w/ time. With more coral colonies and/or increased coral mass due to growth, the PH change would likley become more noticeable between day and night. Just about all reefs have them to some degree, even ones using a reverse lit fuge.
Glad to hear you nailed down the cause of the low PH. It seems a little odd to me too that you have so much
CO2 in the house that opening a window makes that much of a difference- and it's not even winter time.
Quote:
Originally Posted by Melosu58
Thanks for the two good articles Mike
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Your welcome

They helped me a lot.