Osash78 wrote: ↑Thu Dec 05, 2019 12:13 am
Hmmm, I have nice not chlorinated tap water coming at 170-210 ppm depend on time of the year.
So that 170-210 ppm would be most cal and mag if im correct... please correct me if I'm not.
This plant is today 1 week in a 12/12 zone... Peyote cookies... This would be a sick plant ... I can see it... and I can smell her potential...
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Temp is around 20-25 oC, RH is 45%, 850PPM, PH stable at 6... I have good air exchange + good air movement... Really I do not know what can be... Only thing I can see wrong on this plant is transpiration drops on leaves...
maby these rust spots are water drops light burning... Today I put a vent directly to a plant... we will see...
Hm to say that the TDS is mostly calMag in tap water, i think is not entirely true based on what i have read at least and would depend on what your source of tap-water comes from, and what the waterplant does with it etc., if it goes through one, but don't take my word for it!
I would anyway try to lower base nutes a little (unless she can take higher ppm), and up about 100ppm of calMag, and see if new growth grows without the spots, when leaves mature a bit.
They look exactly as the spots i had, and it was resolved by upping calMag from about 100 to 200ppm, and my tap-water is 30ppm.
I have read about the theory of water droplets burning holes or marks in leaves, but i have never seen that happen, even when foliar spraying, so i doubt that is the case bro! I also read somewhere that it is not true, but you do the research!
Hope you get it figured out!
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