My TA, CYA, and CC have been rock solid since I started this method. But my pH keeps falling. I point the return up and aerate the water for 2-3 days, which bring the pH up to about 7.3. Then in about 4-6 days it drops back down to 7.0.
What could cause this? Is there something I need to change to keep the pH from falling? I've only been aerating as the TA is already at the top of the recommended range and it seems any other method of raising pH can also raise TA.
My current results are below. My logs are shared as well. Thanks!
What could cause this? Is there something I need to change to keep the pH from falling? I've only been aerating as the TA is already at the top of the recommended range and it seems any other method of raising pH can also raise TA.
My current results are below. My logs are shared as well. Thanks!