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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