I currently have a newly cycled 24g AP, all the tests show good, and the Alkalinity is 300or more, but my pH seems low at around 7.8 and I want it around 8.2 Is there a way i can safely raise this?
I am using RO/DI water.
Test strips are notoriously inaccurate.
You'll want to buy a liquid test kit set, to achieve the level of precision you'll need.
I personally recommend Salifert's pH test kit. The only hangup is that you need daylight or a full-spectrum CF (compact fluorescent) bulb to read it, the colors aren't accurate under a standard incandescent.