Ph close to 8.5

[Roskoreef]

I'm curious If I should be concerned,

Running a ca reactor my ph was always a little lower... I had a frag tank running opposite to combat low ph.

I have recently taken my frag tank offline and ph returned to 8-8.2.

Recently my Sps have taken off and look great, so I'm not really that worried but ph is higher than ever, here are my recent parameters:

Alk 7.2
Calc 430
Mag 1290
P04 0.25
Ph 8.1-8.48

The ph is getting higher by the week, should I be concerned?



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[Myka]

When's the last time you calibrated? Does it actually read 7.0 and 10.0 in each calibration solution? Do you notice carbonate build up on impellers and heaters? Do you use kalk/lime?

[davej]

Was going to ask the same question.
My pH was hitting 8.4 and I was getting concerned, recalibrated & now ranges from 8.0 to high of 8.2.

[Roskoreef]

Originally Posted by Myka

When's the last time you calibrated? Does it actually read 7.0 and 10.0 in each calibration solution? Do you notice carbonate build up on impellers and heaters? Do you use kalk/lime?

Last year...your probably right, I'll get some calibration fluid tomorrow, no build up, no kalk/lime. Just a ca reactor and zeovit. Ph is 8.48 right now and still 2 hours of halides left, nothing seems wrong at all. I would bet on calibration lazyness! Thanks for the cuff upside the head lol

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[Myka]

Did you calibrate and get a better reading?