PH Help!

Tank2379

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Can someone explain to me why my PH keeps dropping of like this?
A5979CA5-51E1-4C2F-8066-B974C60053D9-794-000000A6A06E31E3_zps8be0fa83.jpg

Thanks :)
Frankie
 
It's normal for pH to drop overnight. I wouldn't worry about it. Your pH swing isn't bad at all.

Edit: I read your times wrong. Still not much of a swing to worry about.
 
Last edited:
It's normal for pH to drop overnight. I wouldn't worry about it. Your pH swing isn't bad at all.

Edit: I read your times wrong. Still not much of a swing to worry about.

Just weird that it dropped down to 7.6 than the normal 7.8 maybe i'll crack open a window or something....
 
Mine drops this low at night sometimes and never hurts anything as long as your ALK, CA are in check and you are measuring a respectable pH at about the same time everyday you should not concern yourself with it.

It looks like your pH peaks at about 4:00pm, this is where you should consistently be checking your pH. I would only be concerned if you see significant drops at this time.
 
Sounds like a little elevated atmospheric CO2 in the house. Can you open any window's? Is your skimmer in good working order? Are you running a Ca reactor?
 
Looks yo me like your pH overall is too low. I used to get 8.4-8.8 with the api high range pH kit.

I would add more macro algae to more fully consume the carbon dioxide in the water.

To help reduce the nightly drop I added baking soda to raise KH.

my .02
 

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