Brown spots on leafs?

o1jayjay

o1jayjay

Member
This just came over the night????????????
The last thing i changed was the hours of light. going from 20 to 12, to force bloom. and then back to 20 after they started to bloom.
im running 2x200w CFL 2700k. Im using a complete vitalink nutrients pack. and the plants are ak47 lowryder, auto and fem. DSC01313.jpgDSC01312.jpg
 
Slojo69

Slojo69

Well-Known Member
I'm going to guess at this, but it LOOKS like they shriveled a tad from heat exposure, but the yellowing is whats getting me man, could be a combination of heat and nutrient issues. What are yer temps? I saw a guy forget to turn his heater away from his plants and over night had the whole side of his plant shrivel and looked exactly like yers is starting to.
 
o1jayjay

o1jayjay

Member
I was tolled when it is autoflower, then they work best at 20 hours of light. so the 12 hours of light was just to force them into flower.
My temp is 22C and 45% humidity. I have a schedule on how much to feed the plants with nutrients. and i have taken the smallest doses they recommend. so its just weird if its the nutrients.
the plants are 5cm'ers away from the CFL bulb if that have anything to say? But i think its only 1/2 out of 6 who has got those brown spots. it kinda look like someone painted them. lol.
 
Slojo69

Slojo69

Well-Known Member
Ya, you are prolly too close to those bulbs bro, 5 cm's is like RIGHT on em almost hehe, Try lifting those lights a tad prolly 6 inches or so, maybe even a foot. 200w is a decent amount of heat, thats what im going with!
 
mantiszn

mantiszn

Well-Known Member
o1jayjay said:
I was tolled when it is autoflower, then they work best at 20 hours of light. so the 12 hours of light was just to force them into flower.
My temp is 22C and 45% humidity. I have a schedule on how much to feed the plants with nutrients. and i have taken the smallest doses they recommend. so its just weird if its the nutrients.
the plants are 5cm'ers away from the CFL bulb if that have anything to say? But i think its only 1/2 out of 6 who has got those brown spots. it kinda look like someone painted them. lol.
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if you have to force an auto to flower by changing 12/12 DO NOT change it back...

browning not sure...
 
o1jayjay

o1jayjay

Member
Its actually 400wats. theres 2 bulbs. but its cfl. so they dont produce that much heat. But i give it a try and hope for the best! Thx mate!
 
o1jayjay

o1jayjay

Member
Oh F*** ... uhm. what do i do now then? They had already got about 3-4 days with 12/12, and now im running at 4th day with 20/4............ this sucks.
 
Slojo69

Slojo69

Well-Known Member
o1jayjay said:
Its actually 400wats. theres 2 bulbs. but its cfl. so they dont produce that much heat. But i give it a try and hope for the best! Thx mate!
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No prob man, keep an eye on it and let us know if that fixed it! Good luck bro!
 
Slojo69

Slojo69

Well-Known Member
o1jayjay said:
Oh F*** ... uhm. what do i do now then? They had already got about 3-4 days with 12/12, and now im running at 4th day with 20/4............ this sucks.
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Well I really don't have ANY experience in re-vegging a plant man. If it's as simple as that, then keep the 20/4 cycle going, just back the lights up off the plants
 
mantiszn

mantiszn

Well-Known Member
o1jayjay

o1jayjay

Member
im not re-veggin. I forced them into flower cause there were getting to high. And the note i got with the seeds said that i should use 20/4 until they were finish.
Im not that good at english. so bare with me :D
So what am i supposed to do? i have already increased the height of the lamp. but what about the hours? Should i leave it on the 20/4 now, or back to 12/12? If i have to go back to the 12/12 again, wouldn't that stress the plant much more?
 
Slojo69

Slojo69

Well-Known Member
o1jayjay said:
im not re-veggin. I forced them into flower cause there were getting to high. And the note i got with the seeds said that i should use 20/4 until they were finish.
Im not that good at english. so bare with me :D
So what am i supposed to do? i have already increased the height of the lamp. but what about the hours? Should i leave it on the 20/4 now, or back to 12/12? If i have to go back to the 12/12 again, wouldn't that stress the plant much more?
Click to expand...
Well I'm not sure how auto's work really, but i know at some point you will want to put them to 12/12. I would do what manti said and put em back to 12/12 if they are showing signs of flowering
 
T

The Sweetest Tooth

Member
About the browning good possibility that theyb were burnt from the light...although My t5 cfl's will not burn unless the plants are literally touching them Thats why cfl are great for vegging because you can raise that canopy so close to the light to capture all of the possible lumens. Unlike HID where you must raise the light anywehere from 15 in to 30 in above the canopy loosing half of your possible lumens for every foot you are away from the light, If you had them at 5 cm i would back off a little!!!!

No need to switch an auto flower to 12/12 hense the name autoflower they are not dictated on a photoperiod but rather on a life cycle. They will flower on a 24 hr cycle i have done it many times. The only possibility is that it is a hybrid and it still needs a kick in the ass with a 12 hr dark cycle to get into flowering mode which might be your case.. If your already back on a 20hr cycle and you have started flowering leave it alone
 
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