- Joined
- Jul 18, 2019
- Messages
- 171
- Reaction score
- 82
I’m at a total loss. I have a 300 gallon SPS dominant reef tank. For weeks I’ve been unsuccessfully trying to raise my pH. I’ve added a CO2 scrubber (recirculating) , I’m dosing several thousand ml of Kalk with a Kalkstirrer, and yet still my pH runs a low of 7.7 and a high of 7.9ish. Not sure what else to do? Any help would be much appreciated.