Strain: Critical Mass, Regular
Indoor grow
Vegetative stage, 60 days old
Plagron power roots 1x a week; 1ml in 1l water (adjust accordingly to water needs)
Plagron terra grow 1x a week; 4.0ml in 1l water (adjust accordingly to water needs)
Soil: Plagron light mix
18h light schedule, approximately 30cm from lights
2x 20W Cosmorrow Full spectrum lights
I’m having a lot of issues with my soil pH. I measure it with the WADEO 6 in 1 Soil pH Tester and get readings from 4.0-6.0, depending when I watered it and where i measure in the soil. The water I’ve given the past 2 times contained baking soda according to instructions from RQS to bring up the low pH. I then measured the water and it was 8.34. I still don’t seem to manage to get the pH high enough. I added dolomite lime granules 6 days ago, but I think it takes too long to breakdown to have an impact. I’m not sure what to do from here and why my soil is so low in the first place…
So first off… when your trying to fix the pH you don’t wanna just add a bunch of baking soda or acidity your water. Trust me, go buy some pH up and pH down. And a decent pH meter. If you r running soil you wanna flush the plant with 6.5 pH water, if your in coco you wanna do 6.0 pH. Doing too high of a pH sounds great but your fluctuating it even more. What you always do is pour like up to 5 gallons to do a decent flush and try to fix the pH in the soil, also if you pH is already high adding like graduate’s can take up to 6 months. 1) there is fast acting lime which is the stuff u would’ve wanted if u were trying that route. But screw the extra additives, that’s only good when pretending. Trust me pH up and pH down. And then if it’s low for soil let’s say 6.2 pH and you wanted it back at 6.5 I’m not gonna thrown 7-8pH I’m gonna throw like 6.8 pH to bring it up. And if it’s low let’s say 4 or 5, I would do a flush with a couple gallons of proper pH and then wait a few days, then give it a normal watering practice, and you may have to do it again in about a week or 2. But that is how u fix your pH properly. It’s gonna be slow, and methods but bill change within 1-2 flushes likely. Trust me pH problems were one of my biggest issues.
Yes. They are easier to use and gauge and more reliable. I tried with lemon juice, vinegar and baking soda on my first (outdoor) grow and only had a cheap soil probe. The results were all over the place and sometimes the opposite effect.
For my 2nd (indoor) grow I bought pH up and down and an Apera PH20 kit and haven’t looked back since. A few drops and I can adjust pH to 0.1 easily. I now only track water/nutrients in and runoff out. I haven’t checked soil pH using the old probe since then. The Apera is an essential tool.
As my tap water is 7.2-7.5, I’ve only used the pH Up once, when I overdid the pH Down. So if you are hesitant about buying them, then pH Down is the most important.
Your plants look good despite your concerns so good luck and I’m sure you’ll be fine.
