Hello, this is my first grow: hindu kush, 41 days from sprout, feeding Advanced Nutes, ph 6.5, 18/6. I see these brown spots on top of the leaf. I this maganese nutrient deficiency or pest? i do not see holes or webbing. Your expertise and advise is appreciated! what advise can you give to help stop the calcium deposits from humidifier water? it lands on the plant and i'm constantly bushing it off. the spotting problem is not wide spread thank goodness but need to stop it.
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Use RO water in your humidifier
And can you take pics in normal light
how close is your light? And what light are you using?
Hi, thanks for your reply. I’m using VIPARSPECTRA V450W, height at 31”; I hope these additional pics help! Thank you
Do you use cal-mag and have you moved the light closer recently ?
No, the light hasn’t changed and I haven’t used Cal-Mag. Here’s a pic of the tent & fan.
definitely start adding some
I should start Cal-Mag?
Where are your fans sitting in your space?
Do you have a heater or ac in the space as well? If so, where are they located?
I almost want to say earl stage phosphorous deficiency since the leaves aren't getting any lighter between the veins. The way it's moving at the tips and the middle
I don’t have an Ac & the humidifier is set on bottom right. Should the light be lower? Thank you!
@Y Reina According to the specs on this, you are within the range of where your light should be. Definitely play with it a little and see what works best. That's definitely a nice bushy plant so you're doing great so far.
Are the leaves that are being affected on the same side as the fan?
Also, what humidifier are you using? I just noticed your other question. You may need to rig something up to direct the mist away