Burning??

This is a Star Dawg I have in a 3gal felt smart pot, running Peter’s excel Cal-Mag at 500 ppm and 6.8 steady for months now and haven’t had this issue, maybe once it got around 600 ppm, in coco 70/30 mix, Temps run 77-82, humidity 55-60, single fluence vyper lightning, any ideas?
 

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hotrodharley

Well-Known Member
This is a Star Dawg I have in a 3gal felt smart pot, running Peter’s excel Cal-Mag at 500 ppm and 6.8 steady for months now and haven’t had this issue, maybe once it got around 600 ppm, in coco 70/30 mix, Temps run 77-82, humidity 55-60, single fluence vyper lightning, any ideas?
What bugs are around there? Have you checked all over the plant for bugs? How many months has this been in a 3 gallon bag?
 
For testing soil / coco pH I use a meter like this: https://aperainst.com/ph60s-premium-spear-ph-meter-pocket-tester-for-solid-semi-solid-sample-ph-measurement-cheese-meat-sushi-rice-soil-canning

You can probably get reasonable results using distilled water in a slurry test.
Reading was around 6.3 l, and I did find spider mites all over it, I took it out of the tent and flushed it with just ph’d 6.2 water, our tap water here is 78ppm so no need for RO I don’t believe, I prefer to don have to spray any Neem or etc on these plants, predator mites probably the best route to go?
 
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