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Unread 09/14/2018, 09:27 PM   #1
theshaman
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Effects of high ph

Hi Reefcentral! I have always read to keep your ph between 8-8.5
My question is what are the effects of having a ph higher than 8.5?
My tanks goes up to 8.55 sometimes when I have to windows closed and the ac on.
Thanks Reefcentral


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Unread 09/15/2018, 08:47 PM   #2
bertoni
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At some point, the pH will become dangerous to animals in the system. At what level that happens depends on what's in the tank, but a good goal is to keep the pH at 8.6 or lower. That should be easy in most cases provided that the tank has good aeration. 8.55 is not a problem.


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Unread 09/15/2018, 08:53 PM   #3
theshaman
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Quote:
Originally Posted by bertoni View Post
At some point, the pH will become dangerous to animals in the system. At what level that happens depends on what's in the tank, but a good goal is to keep the pH at 8.6 or lower. That should be easy in most cases provided that the tank has good aeration. 8.55 is not a problem.

Ok.
Thank you for the reply, Bertoni!
There seems to be a lot more information about low ph and not so much on high ph.


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Unread 09/15/2018, 09:13 PM   #4
bertoni
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We don't have much in the way of data because it's much less common a problem. Generally, indoor air is high enough in carbon dioxide that low pH is more of an issue.


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Unread 09/16/2018, 03:25 PM   #5
outssider
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8.55 seems extremely high, I would check with multiple test kits before I believed that number


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Unread 09/22/2018, 01:37 PM   #6
Uncle99
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Yup, while maybe 8.5, that looks like a testing error without a scrubber and even that is pushing it.... get a second opinion


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Unread 09/22/2018, 03:20 PM   #7
bertoni
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Yes, that's a good point. The measurement might be off. That's very common, as well. If you're worried, getting a second opinion might help.


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Unread 09/22/2018, 11:19 PM   #8
Akram
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Your pets will probably live but not thrive. Try to fix your ph.


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Unread 09/24/2018, 07:20 AM   #9
reefgeezer
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Your pets will probably live but not thrive. Try to fix your ph.
I would not chase pH... ever. Make the tank is well aerated and that the Alk is in acceptable ranges.


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Unread 09/24/2018, 07:25 AM   #10
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Quote:
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Snip--->
My tanks goes up to 8.55 sometimes when I have to windows closed and the ac on.
Thanks Reefcentral


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Typically when people close the windows and run AC, they see a decrease in pH due to the rise in Co2 in the house.
As others have stated, might want to verify the reading with a different testing method.


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