Plant dying during one night

Hi guys, this is one friend cannabis, I do not have much information but pics. He also installed a fan last night and this happened.
First time seeing something like this happening that fast, so I'm here for learning more than anything. Any ideas will be welcomed.
Pics after and before that night.

It's dead this is a recap. A fan didn't do that did you forget to water it? Did you put some crazy shit like raw coffee grounds or molasses on it? That soil doesn't look aerated enough, maybe you kept it too wet.

Edit: I looked closer it could be barely alive still. What did you do?

It doesnt look over/under watered or poisoned by anything since I dont see any color changes in the leaf. Was it an exhaust fan he installed or a fan to blow on the plant? If it were to blow on the plant, how close and how hard was it blowing on the plant? Thats a lot of damage for overnight and it looks environmental if I had to guess.

You drownt it. Poke holes all threw the soil and hope for the best

what's the temp?

It is wind burn, if such a term exists. If the fans blow too hard across the leaf surfaces, this is the end result. I imagine someone far more knowledgeable than I about botany could explain, but it dehydrates the leaves. If few leaves, dead. Plant can't move water fast enough internally to compensate.

As my friend evidence the fan was far from the plant. Also the lights were CFL 150w.

If you put in a fan, changed nothing else, and went from fine to dead, understanding what the fan did would be a great start. How far away is one relevant variable but so is how big is the fan. A big box fan 2 or 3m away could do it on a high enough setting.

I also think that was fan fault, but some others guys telling my friend that is a nut burn :s

If it were nute burn, the leafs would be burned and discolored.

Why are wind burn and nute burn necessarily distinct causes. My guess is the wind is the culprit and the effects are nute burn. If I am right about the botany, there is not enough water in the leaves because the plant can't move it fast enough. The plant is moving water to photosynthesize that evaporates, the building blocks of photosynthesis are still in the leaves. There are too much nutes in the leaf, but the cause is the water evaporated by the wind over the leaves, the nutes would be fine if the water could just not transpire.

Kill the fan and try misting the thing with plain water. You might just save it.

xxorezxx said:

that is a nut burn :s

Click to expand...

oh I hate a gnarly nut-burn.
the worst is a rug-nut-burn..
very painful

What do u feed??

Tough one bro. Soil just doesn't look good to me. I see its damp looking and perlite is in there. But, it doesn't look healthy. Go ahead and compost that. Then start over and do EVERYTHING different.

Is this a troll? Hmm. Yeah stuff like that just don't happen overnight unless you abused it in some way. Did you set the fan to a gentle breeze, or like a hurricane? More doesn't always mean better.

whats the ph? if you watered in some crazy ph 8-9 or 2-3 your plant would clench up and brace itself like a guy hurling from drinking too much.

are there roots coming out the bottom? how do they look? clean and bright? or dark and soggy?

put a large-ish ziplock bag over top and breath into it to increase the CO2 and humidity. seal the bag around the rim so it remains filled and upright. poke a hole in it later this week or the next. dont bother trying to get the flimsy leaves to spring back to health, they likely wont. but focus on the new growth.

formulate a 2-2-2 tea or any equal part tea but diluted somewhat. when your soil is drier but not bone, give it the tea. then let it get more close to bone dry. if your soil was depleted from over watering, that should fix it. if the soil ph was out of wack from a bad tea, that should help fix a ph flop as well.

it looks like it is depleted and over watered in one sitting. if it was recycled soil, you probably have a PK deficiency.

Looks like lack of water to me.....soil looks dry and looks like u tried to water it after the fact...the soil looks to be just rolling on the surface..like the very first time u water...were the leaves crispy or moist just wilted?

JaneSays95 said:

If the fans blow too hard across the leaf surfaces,

Click to expand...

I use 18" fan 18 inches from canopy on high and the worst I get is a little leaf edge roll on the closest ones.

I get sudden death from unclean water buckets, contaminated nutes/supplies. PH more than 2 whole points off. Over watering. Water sitting in root-zone. Looks like you hit it with a pesticide.

Cx2H said:

I use 18" fan 18 inches from canopy on high and the worst I get is a little leaf edge roll on the closest ones.

I get sudden death from unclean water buckets, contaminated nutes/supplies. PH more than 2 whole points off. Over watering. Water sitting in root-zone. Looks like you hit it with a pesticide.

Click to expand...

Or round up lol..not funny..sux to lose the ones yoy love

^ I spy an MPC1000 in someones profile pic.

HydroRed said:

^ I spy an MPC1000 in someones profile pic.

Click to expand...

Hehe u know it