Can't get PH up!
Hi,
A ph of 7.9 to 8.2 is a normal daily fluctuation on the reef. A ph of 7.8 is a little low. I would not recommend going as high as 8.4. You might want to check the ph of some of the make up salt mix as it could be on the low side. Also make sure you add the salt mix to the water and not water to salt mix.
Cheers,
Tim
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