Scrogdawg
Well-Known Member
I copied this from an earlier post in another thread. This on a 2 plant RDWC system. I added Ca/Mg (CaliMagic) for the first time at 25% the bottle rating and that alone shot my TDS up by 100ppm, wasn't really expecting that. Also mixed my Flora series nutrients 10% heavier than in the past so now water is 200ppm, Ca/Mg is 100ppm and nutes are 400ppm. So the new recipe going into the system when it warms up a few more degrees goes like this: PH - 5.9, TDS - 700 ppm, EC - 1.40 µS and Solution Temp - 69 ⁰F.
I did a water change with the above recipe on Friday afternoon and once the system settled down my meter recorded PH - 5.8, TDS - 720 ppm, EC - 1.44 µS and Solution Temp - 68 ⁰F. Now, Sunday afternoon and the readings have progressively reduced to PH - 5.6-7, TDS - 660 ppm, EC - 1.36 µS and Solution Temp - 69 ⁰F.
I'm fine with the TDS and EC going down as the plants consume the nutrients but I'm confused as to why the PH level is dropping as well.
Does anyone have any thoughts or an explanation for this??? Is it normal? Just trying to wrap my mind around it. Thanks.
I did a water change with the above recipe on Friday afternoon and once the system settled down my meter recorded PH - 5.8, TDS - 720 ppm, EC - 1.44 µS and Solution Temp - 68 ⁰F. Now, Sunday afternoon and the readings have progressively reduced to PH - 5.6-7, TDS - 660 ppm, EC - 1.36 µS and Solution Temp - 69 ⁰F.
I'm fine with the TDS and EC going down as the plants consume the nutrients but I'm confused as to why the PH level is dropping as well.
Does anyone have any thoughts or an explanation for this??? Is it normal? Just trying to wrap my mind around it. Thanks.