I'm a first time grower and can't decide what's wrong based on what I've read thus far. The plant is a little over a month old. It's been about 6 in below a 400W MH for around 4 weeks now and seemed to be doing spectacular after I had provided fish emulsion diluted 2 tbs/gal. I'm pretty sure I watered too often with the fertilizer though, using the solution about three times in a row until I noticed it was only meant to be applied every couple weeks. I was fairly certain this was the problem until reading the other explanations on the board here for droopy leaves. BTW, they also look to be getting just slightly less green as well. The first symptom before they drooped was that the two longitudinal sides of the leaf blades folded upward in a claw-like manner. They then drooped and now many of the other leaves look to be following suit as well. I follow the 1-2 in. soil dry rule for watering, usually about every other day. It is in a large container. Also, it's fairly humid in the closet as we have a fan but no ventilation as of now. So, which would this likely be?... overwatering, humidity, over-fertilizing, Mg deficiency? I'm leaning toward over-fert but need the feedback from those more experienced... Thanks everyone! 1Self
Now the tips of the droopers are discolored, almost brown. The rest of the leaf itself looks fine, it's just the very last 1/8" or so, with a very defined boundary.
Heat stress, 6 inches is way to close for a 400w bulb, move it to 12-15 inches away. Anytime you see the edges curling up like that its heat stress.
The tips turning brown is almost always Nutrient burn, but in your case with the light so close its probabaly just because of the intense heat. Move your light up please.!
ok now that i read your entire thing about the fish emultion the tips turning brown is nutrient burn, flush the soil with 2x the capacity of the pot. Also this doesnt mean you dont have to put your light up because you still do.