George Parker
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Guess I can do it from my phone
How To Use Progressive Web App aka PWA On 420 Magazine Forum
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6.5 is definitely the sweet spot for soil. @ 6.8 and up the Iron and Manganese drop and could cause a deficiency. I'll find the pH uptake chart when I get to a computer or if someone can post it up that would be great. If you can I would suggest picking up a decent pH meter as I have heard that the stick meters aren't very accurate. I picked up my Milwaukee pH meter for around $35 bucks and it works great. I calibrate it weekly and it has never been more than 0.1+/- off. I started out using the pH test kit that came with the GH up/down and when I picked up my digital meter I found out I was waaay off.
Hope this helps some, I'm sure the gurus around here will chime in with some more info.
I personally like my soil to stay between 6.8-7.0 ph. For future grows add delomite lime into your soil to naturally help balance the ph. Since you are using geopots you will need to water more often. It looks like in the beginning you weren't adding enough water. Also, when you do add water make sure you pour slowly so that the water is not running through cracks and distributing envenly. Since you are using tap water in a bucket you can add airstones in there to remove the chlorine faster and increase airation. I also recommend researching compost teas in order to avoid nute burn.
Wow what a difference. Girls looking awesome. Yes give cal/mag every watering.
Nice recovery bro. You're doing a good job.
Awesome! I do love some before and after pics
Looking much better