javawanabe
Member
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The details:
-perfect room- (i like to think i know what i'm doing)
100% dialed
2 600 hps
50-60%rh
week 4 veg
1500ppm co2 enrichment
lights are 24 inches from canopy
78-82 degrees day time
rez locked @ 65 degrees with chiller and ample aeration in seperate room
ph floats from 5.5 - 5.9
hydroton medium
my custom aeroflo system 48 sites with half plugged scroging
just went to 12/12
-using the lucus formula 1400ppm (i don't buy the additive marketing BS.... no offense if it works for you)
so some of the leaves (older growth) are doing this. new growth looks good at first (and still healthy looking) but over a few days they are doing this browning thing.
the brown parts are hard/papery
it starts with a darkening at the tips.
frankly, i'm surprised I'm showing a deficiency with "lucus" but it sure
looks like a Mg issue???
I'm hoping one of you nutrient geniuses can give me a hint as to what's happening. Again, this seems to be only about 2% of the growth... maybe.
I've only been on full strength nutes for a week (1400ppm lucus). At first I thought it was just the leaves that were developing BEFORE I fully nuted (I might have waited a bit long to give the full dose) but now it's looking like the "newer older" leaves are doing this...
The ones I picked for the photos are a very extreme cases.
No way this can be burn right????
I just want to nip this in the bud (pun intended) before I have a situation on my hands.
Thanks so much for your consideration...
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