I have 7 plants in an insulated 8x8 full mylar room with a 1000w hps and two 300w t5 flo growing soil with the full Roots Organics masters program, full air replacement every 5 min and good air circulation. Im having leaf yellowing and drop but only on the internal leaves, what could this be caused by?
Yellowing of internal leaves only.
- Thread starter unity455
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