Increasing the PH in the 200 Gallon Innovative Marine Shallow Reef Tank

Hey Mike, I definitely think a higher PH helps but here are my thoughts on your setup. You are using 1/4 inch RO tubing on a large skimmer so it's like sucking through a small straw vs a giant one plus you have a long run, so imagine drinking through a very long tiny straw. I put some PVC through my window and run 1/2 tubing and then use insulation to stop cold air from escaping. It might not even work, maybe Kalk is the route for you.

Never have even measured my ph in all my time in this hobby.