Sorry to hear that your gorgonain is not doing as well. My tank is always my biggest worry when I go out of town. Try doing a 20% change asap, followed up by a couple of 5-10% a day or two later. 8.5 does seem high for the ph considering that is usually tends to decrease over periods of time when not dosing supplements. If you checked it at the end of the photoperiod then it will be slightly elevated as opposed to if you checked it in the morning. Did your wife add any additives while you were gone or just make up water?
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