I’ve been battling low pH, 7.6 - 7.77 since I set up my tank in early May. I’ve been dozing soda ash to try and bring it up but it’s never reached 7.8 and always falls back to the aforementioned range.
I noticed in last weeks water change that it dropped immediately after to 7.6.
I just made a batch 2 hours ago and used my probe to measure the pH at 8.07. I then did 3 Hanna colorimeter Alk tests and the Alk was 6.8, 7.0, 6.8.
Do the organics in this mix compromise these Alk tests? I thought it was supposed to be in the 8-9dkh range?
My salinity is 1.024 @ 77F measured with an optical refractomer.
I noticed in last weeks water change that it dropped immediately after to 7.6.
I just made a batch 2 hours ago and used my probe to measure the pH at 8.07. I then did 3 Hanna colorimeter Alk tests and the Alk was 6.8, 7.0, 6.8.
Do the organics in this mix compromise these Alk tests? I thought it was supposed to be in the 8-9dkh range?
My salinity is 1.024 @ 77F measured with an optical refractomer.