slfcaptain
Active Member
My last thread about alkalinity got nuked in the crash and I need some more help.
The alkalinity in my tank has been on the low side, 7 ish, for the past few months and water changes are barely keeping up with it. The last several alk tests are:
9/12: 7.3 dKH, Ca 415ppm, Mg 1340ppm, pH 8.0
9/13: 7.1 dKH
9/14: 6.85 dKH, Ca 410ppm, pH 8.0
9/15: added GFO and purigen to the tank to help control an algae problem
9/16: 6.4 dKH
There is clearly a downward trend in the alk. Is this the time to add something (like baking soda) to bring the alk up?
The alkalinity in my tank has been on the low side, 7 ish, for the past few months and water changes are barely keeping up with it. The last several alk tests are:
9/12: 7.3 dKH, Ca 415ppm, Mg 1340ppm, pH 8.0
9/13: 7.1 dKH
9/14: 6.85 dKH, Ca 410ppm, pH 8.0
9/15: added GFO and purigen to the tank to help control an algae problem
9/16: 6.4 dKH
There is clearly a downward trend in the alk. Is this the time to add something (like baking soda) to bring the alk up?