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- Witch's Weed (sat dom) Blue Dream both photo from a disp.
This is my 1st autpot and also 1st autoflower grow but I am an experienced photoperiod grower.
I just turned my rez on 2 days ago. I had mixed the nutrient solution to 5.8 and filled the tray. I then decided to setup my BlueLab guardian pH/ppm/ec/temp meter probes in my rez. That is when I found out that my pH was not 5.8 but 4. something in the rez and tray as per the bluelab which I trust far more than my Oaktron pH pen which I tossed. I immediately turned off my valve at the tray and vacuumed the water out of the tray making an effort to suck out all that I could pull out of the channels under the pot in the tray. I then raised the pH to 5.8 with less than .5-.25ml of silica in my rez and open the tray valve measuring tray pH and rez both at 5.8 pH.
The pH has held rock steady at 5.8 in the rez and tray. My question is it feels like my growth may have stalled. It is very difficult to assess this with only 48 hours passing but just fro discusion's sake let's assume that I have created a lockout with this pH issue. My girl is only about 5-6 inches tall.
I am growing in a coco/hydroton mix and have 2-2.5 inches of hydroton in the bottom. I was thinking that if I were to flush in a situation caused at the bottom of my pot rather than a top feed caused issue. In other words, the situation was caught so quick/early that I feel the problem is localized at the bottom and not through the strata from top to bottom.
I was considering a bottom flush by way of a soak in 3-4 inches of clean pH'd water for a few minutes and then pour out and refill with repeat soak at least twice.
Prior to this she grew with no issues so leading up to this was smooth sailing. One thing I'll say about the DWC/RDWC approach, you have good/easy feedback with ppm as far as lockout. Plant locked out? PPM stay the same level and if all is well then ppm drop as nutrients are absorbed so it is easy to track. Autopot grow does not allow for such feedback IMO and lockout would have to be indicated by the plant itself.
I just turned my rez on 2 days ago. I had mixed the nutrient solution to 5.8 and filled the tray. I then decided to setup my BlueLab guardian pH/ppm/ec/temp meter probes in my rez. That is when I found out that my pH was not 5.8 but 4. something in the rez and tray as per the bluelab which I trust far more than my Oaktron pH pen which I tossed. I immediately turned off my valve at the tray and vacuumed the water out of the tray making an effort to suck out all that I could pull out of the channels under the pot in the tray. I then raised the pH to 5.8 with less than .5-.25ml of silica in my rez and open the tray valve measuring tray pH and rez both at 5.8 pH.
The pH has held rock steady at 5.8 in the rez and tray. My question is it feels like my growth may have stalled. It is very difficult to assess this with only 48 hours passing but just fro discusion's sake let's assume that I have created a lockout with this pH issue. My girl is only about 5-6 inches tall.
I am growing in a coco/hydroton mix and have 2-2.5 inches of hydroton in the bottom. I was thinking that if I were to flush in a situation caused at the bottom of my pot rather than a top feed caused issue. In other words, the situation was caught so quick/early that I feel the problem is localized at the bottom and not through the strata from top to bottom.
I was considering a bottom flush by way of a soak in 3-4 inches of clean pH'd water for a few minutes and then pour out and refill with repeat soak at least twice.
Prior to this she grew with no issues so leading up to this was smooth sailing. One thing I'll say about the DWC/RDWC approach, you have good/easy feedback with ppm as far as lockout. Plant locked out? PPM stay the same level and if all is well then ppm drop as nutrients are absorbed so it is easy to track. Autopot grow does not allow for such feedback IMO and lockout would have to be indicated by the plant itself.
