New growth problems

Hey guys so I have 5 white widows in 5x5x6.5 with a 600w MH from seed i I know it is that my new top growth has been looking wierd like it heat it getting it damaged my temps are 73-78 F humidity 70-85 humidity was a problem for 3 days till now I had it set I just can’t decide what’s wrong with my girls if anyone can help I would appreciate it it so much

I've seen 130 f in my greenhouse and mj plants were fine. your heat isnt the issue unless you have insufficient air exchange/c02.

I think yours look good, possibly overfed a little but no worries until flowering.

I did add co2 I got an tnb anhancer bottle Nd I saw my leaves curling up like it it was heat stress so I just took out the bottle but now that I know have it all this started to happen. I put my hand above my canopy Nd my hand feels fresh I just can’t get what can be causing that

Luis420 said:

I did add co2 I got an tnb anhancer bottle Nd I saw my leaves curling up like it it was heat stress so I just took out the bottle but now that I know have it all this started to happen. I put my hand above my canopy Nd my hand feels fresh I just can’t get what can be causing that

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fertilizer man, its the fertilizer

My last feeding was just R/O water just to clean out my coco. So I should start flushing then? And see what happens?