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Old 11/10/2017, 10:50 AM   #2
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o2manyfish's Avatar
Join Date: Nov 2002
Location: Encino, CA
Posts: 6,107
pH shift is a natural part of photosynthesis rates changing whether their is light or not.

It would be more important to keep Alk levels stable than your pH - In my opinion and from my experience.

When my alk is dialed in and rock solid - my corals are happier.

Doesn't matter what my pH is doing.

When there is an issue with my corals not looking their best - pH is never a concern for me. There is some other culprit.

Dave B

400g Display. 900g System Volume. 180g Outdoor Sunlit Frag Tank. 30g 2 story surge tank. Deltec Skimmer. Ozone. UV. 5' Fluidized Sand Filter. Kalk Mixer. Calc Rx. Radions

Current Tank Info: 400g SPS Dominant Reef
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