Can any of you Fella's take a quick peek at this and help a borther out.

PICS

Whats up guys

I am about 4weeks into flower. I hit it with coco a and b and some good flowering juice. I dont think its over nute, I think it may be heat stress?

I have a 250W HPS, a pretty powerful outtake, and a little fan in the tent for circulation. I am thinking its heat because im growing in a tent inside a shed and its pretty hot where I live too. Couple the outdoor heat + internal heat from the lamp and it gets toasty.

PH: 6.6-6.7
Temp: my thermo broke, but I can imagine it can fluctuate between 83-95 F

Thanks guys/gals

yup... that's heat stress for sure. No nute burn there. Any burn ya see is from heat. Raise lights some more and see if you can get some more air flow in the shed.

Heat would usually cause the leaves to curl up, like to roll up like canoes. That leaves overwatering or too much N. I'm going with excess N, because you're flowering, and excess N during flower looks a lot like that. Doesn't look like heat to me.

Just looked at your images again. That super dark green has got be from excess N.

Im guessing I should do a deep flush huh?

Obvious nute burn. And get them temps down

Yeah, "flush it, flush it, flush it real good." What is the NPK ratio on the nutes you're using? Your temps are definitely not ideal, and the heat is exacerbating the suffering and stress your plants are taking on from the nute burn. Flush it before she goes toxic. Like, right now.

yes you can flush but Im telling you its heat. keep your lights at same distance then and see how it goes. Everyone on here always says its a nute problem.

I am going to go with nute burn and too much N, I have had this problem myself around the same time as you are having it and it is from either feeding veg nutes too long, or using bloom nutes with a bit too much N. Give em one good flush, or two heavy waterings (3 gallons or so) a day apart and you should take care of the buildup. Reintroduce nutes gradually.

Nitrogen abundance,heat stress and nutrient burn....

I grow with coco coir and have use canna A&B nutrients in the past... Canna is super acidic so make sure you check ph when nuteing your water

Yepper Spartacus said it. Anytime you have leaves curling down and cupping down its to much N. And too much heat and to much water or to little doesn't help. When my grow hits 80 sometimes I'm worrying. Also if your blasting a fan on it 24/7 it looses moisture to fast and that can make leaves fucked up looking also.