Please help... pictures included

I dont know what's going on with these fan leaves. I'm using soil and 1000watt lights.View attachment 1474389View attachment 1474390

I dont have pictures of the whole plant with me but its not every leaf probably 10 leaves on 3 or 4 plants and there are around 15 plants. Temp stays around 82 when lights are on but CO2 is at 1500 ppm. temp goes down to 74-76 when lights are off, CO2 is off when lights are off. Humidity is around 40 at all times. I am currently using Fox Farm and i used Snow Storm and Cal mag in my last feeding.

Is that the temp of the room or the temp next to the plants? Never know could be a lot hotter right under the 1000w.

thats right in the middle of the plants

what foxfarm products do you use? that looks like a bit of Phosphorous overdose.

Big Bloom, Grow Big, Tiger Bloom, open sesame, beastie bloom, and one other powder. i go off of the chart

Has anyone had this same problem?

How close is your light ? Was those leafs from the top of the plant?

have you used the open sesame beastie bloomz and cha ching full strength with this strain before? i find that most strains cant handle them at the rate the feeding chart suggests. are your pH levels in check? my only other thought is heat but is sounds like you have that in check. is it possible you co2 sat is spiking at some point in the day?

As much shit as you're feeding them, it's gotta be some kind of burn.

I flushed the plants last night. I tested the ppm and it was around 3000 so it was nute burn. i got them all down to 800 and i am going to cut my feeding in half from now on.

I was feeding them full strength and my PH is at 6.5 it's not a heat issue because they are not burning at the top of the plants

OUCH!! glad you got them under control. Happy growing!

good thing to know. I haven't gotten that far down into the chart yet! Hope everything recovers and now I know used 1/4 of that stuff when it's time

i went to write BAD nute burn, but kept reading & saw u figured it out good job