Light burn? what else?

A

ajs85

Member
Hey all,
I recently replace my CFL setup (approx 5 125w 2700kCFL lights, 2 100w 6700kCFL lights, and a few t8 bars) with a 1000w HPS and a 400w MH. I have placed them originally about 2 1/2 - 3 ft above the plants, and after seeing this I moved them up to about 4 ft. What I am seeing a slight "droopiness" and "curl" to the plants leaves,not around the edges but at the ends they are curling slightly downward toward the stem, and 2 or 3 of them are bending a little bit on the leave, looking like slight dryness on the side of it. I dont think its nute burn since I feed them about once a week with a small amount of nutes (I just fed them another small amount incase it was nute deficiency). I thought it might be water deficieny at first since im used to watering them every 3rd day but the new lights dried up the water pretty quick so I gave them some water too and that seemd to perk them up a little but not perfect. Just wondeing whats wrong and how far you guys have your lights of similar watage positioned above your plants.
PS: my hand is very comfortable held where the plants are, I could keep it there for hours although I would probably get a sun tan/burn - it is equivalent to being in the hot sun basically.
 

Attachments

purple blues

purple blues

Active Member
is the floor concrete? i'd be worried about it being to cold on the babies being in a cup directly on the floor, i could be wrong though.
 
A

ajs85

Member
To answer you guys' questions:
I have the temperature set to a constant 80* fahrenheit; it never ever even wavers (except in the light's off time i set it for 5* lower). I never thought about it being too cold on the concrete floor, plus this didnt happen until I switched lights. I dont think thats the problem because i usually go down there barefoot first thing in the morning to check on 'em and since its a constant 80 down there the floor is pretty comfortable on my feet, also a few of them are in 3 gallon pots and they are affected just as much as the rest. I also forgot to tell you all that about 2 days ago I began a spraying regimen in case it is spider mites (sprayed once 2 days ago, will spray every 4 days until the problem clears up to kill the mites and the new larvae that hatch since the spray i have doesntt kill the eggs).

I moved the light up even more (at this point i dont think its light burn; the lights are literally four feet away from the tops of the plants now) and my plants are looking even MORE droopy! (however some of them look completely fine). Im completely baffled. Maybe the plants are getting used to the new lights? Help!!

edit: oh yeah, PH is good, humidity is at a constant 40%, they have a constant light breeze, yesterday was watering day and that didnt perk them up, theres really nothing i can think of that it could be!
 
A

ajs85

Member
I think the plants were just getting used to their new lights. It is 5 days since I got them and they are starting to look great again. Leaves are spreading out, lots of new growth, either that or it was a boron deficiency since a friend mentioned it and i treated with boric acid (but only 1/4 what was recommended incase it wasnt a deficiency and the boric acid messed up my PH) :confused:. Either way thanks everyone Theyre lookin' good!

ajs85 said:
To answer you
guys' questions:
I have the temperature set to a constant 80* fahrenheit; it never ever even wavers (except in the light's off time i set it for 5* lower). I never thought about it being too cold on the concrete floor, plus this didnt happen until I switched lights. I dont think thats the problem because i usually go down there barefoot first thing in the morning to check on 'em and since its a constant 80 down there the floor is pretty comfortable on my feet, also a few of them are in 3 gallon pots and they are affected just as much as the rest. I also forgot to tell you all that about 2 days ago I began a spraying regimen in case it is spider mites (sprayed once 2 days ago, will spray every 4 days until the problem clears up to kill the mites and the new larvae that hatch since the spray i have doesntt kill the eggs).

I moved the light up even more (at this point i dont think its light burn; the lights are literally four feet away from the tops of the plants now) and my plants are looking even MORE droopy! (however some of them look completely fine). Im completely baffled. Maybe the plants are getting used to the new lights? Help!!

edit: oh yeah, PH is good, humidity is at a constant 40%, they have a constant light breeze, yesterday was watering day and that didnt perk them up, theres really nothing i can think of that it could be!
Click to expand...
 
You must log in or register to reply here.
Top