Need help on high PH

[noobz]

Hi all, need some advise. My tank PH is range 8.6 - 8.7. Understand the idea PH for Marine tank is 8.0 - 8..4. How can. I bring the PH down? Did water change but not significant drop. Read in some Forum some readers are using vinegar to bring the PH down. Anyone tried before? Thanks in advance.

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[xiggie]

Sometimes the problem is not the water , it's the equipment that u use to measure.

[noobz]

I'm using pin point PH meter

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[hideaki]

Try changing battery? How long have you been using it? Mine recently also gave me 8.6. After i change battery, reading went back to normal.

[noobz]

Try changing battery? How long have you been using it? Mine recently also gave me 8.6. After i change battery, reading went back to normal.

ok will try and change battery.

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