Hello all, I'm seeing discoloration of leaves on one of my girls and I'm struggling to identify/correct the issue. I first noticed a deep rust color on new growth which I assumed was a calcium deficiency but I am hoping for some advice.
Setup info:
White Widow Auto (Flower started 10/22)
Spider Farmer SF4000 LED
Fox Farm soil
Fox Farm nutes (every other feeding)
CalMag (every other feeding)
PK Booster
Humidity in 40 to 50% range
Temperature between 70 - 82
When I noticed the discoloration I flushed, 4 days later I fed CalMag and tested RO.
PPM 1161
PH 6.0
Next feeding 3 days later:
PPM 890
PH 5.9
Last feeding I sprinkled a small amount of lime on the soil in hopes of bringing the PH up and haven't tested since then.
I also added a dose of PK booster as I have noticed some spotting on bottom leaves.
I would appreciate opinions on cause and where to go from here.
Thanks in advance..
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6th week of flower. I was able to raise the light to 26" which is the max in the environment. I will cut back on watering & post updates if things change. Thanks for the advice, it's appreciated.