I've had an issue with having to PH up all of the time. I use RO water and was using GH's PH Up a few times per day. I finally tried a tiny bit of baking soda disolved in water and used that, and my PH has been far more stable since using it.
Results could vary obviously, and it's not generally recommended over the store bought ph up. But the baking soda also helps buffer the ph, so it's worth trying anyway to see if you can go longer between adjustments.
MisterE Reviewed by MisterE on . Drop in pH..but good growth...???? Hi all. I'm about 3 weeks into vegging and my girls look great. Lush and healthy. I've been experiencing slight drops in pH like from 6.0 to 5.7 or 5.7 to 5.5 during the light cycle. I'm not sure what it means or if it's fine or what. TDS at the last rez change (5 days ago) was about 1700 with all nutes and supplements combined. The plants took very well to it. TDS today is 1370 so the plants are using up the nutes. Usually when plants use nutes the pH tends to increase a bit, not Rating: 5