To preface, this is my first grow, and haven't run into any issues up to this point. I noticed the tips around the edges start to 'burn'?
My setup:
- Coco coir
- Fox Farm nutes line
- Full spectrum grow LED 600w light @ 20"
- Water/Fertigate when light in weight (everyday or every other)
- 1200-1400ppm
- 6.0-6.3 PH in flower (truthfully been keeping the PH closer to 6.3 and not dancing within the 'acceptable range')
I flushed most recently this weekend (7/17), and the last fertigation bucket I started cutting my cal/mag strength in 1/2.
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I would get a jewelers loop, or get a good camera microscope, or use your phone's camera to inspect for spider mites, use loop/microscope for checking mold on buds harvested and terpenes, trichromes, etc. growing. I mention this because of your original post.