Hi all, I'm new to this board and somewhat new to reef keeping. The question I have is what PH test kit do you reccomend? I have a Hagen kit and the color scale seems very difficult to make level determinations on. Although I do not have an alkalinity kit yet all of my other tests lean towards high water quality yet my PH seems to be off the scale high- above 8.5. I think this is a false reading and wondered if anyone has any suggestions. The tank is 4 weeks old, 72 gallons, has 45 lbs of LR and a 4 inch Southdown sand bed in it.