With the heat wave we’ve been under, my AC is running non stop from 10am to 10pm. I normally use an exhaust fan in my reef room to push CO2 outside. My pH usually bottoms out at about 7.95 at night. Yesterday I had to take the fan out of the window because the tanks were getting pretty warm and I needed to keep the AC in the house. I got up this morning and my pH was down to 7.7 and my Alk shot up to 9.2 from 8.9. How are you guys dealing with low pH/Alk adjustments?