PH over 9.

[BklynRif]

Added some crushed coral to a 20 gal tank that I had in another tank and the Ph went up to 9- 9.27. It's been like this for the past 3 days. KH is 9. Should I let it go down by itself or do something about it? I'm not sure if this a good thing or a bad thing. Using American Marine PINPOINT pH and Hanna Alkalinity checker. Thanks

 

[Fragmented]

Has the meter been calibrated. Haven't heard of ph that high

 

[Dumbledore]

What are you dosing and what are your phosphate levels?

 

[Josh]

Calibrate your probe.