input please

I've had this issue here and there through the years, first I though I was just moving too much air in my rooms as the amount of equipment I had was ridiculous so I used it all,lol Wasn't that.

Then I assumed it was just heat as my rooms have a/c lights but no air conditioning itself. This time of yr, 85,88,90, not uncommon. I got a/c piped in everywhere now, wasn't that.

So now I'm thinking I'm hitting a hot spot in my feed regimen and I'm thinking it might be the beastie bloomz as that's the common denominator. I recently switched from FF to Botanicare but I kept the solubles and have been using them in conjunction.

Note- I'm a very light feeder, my ppm's very rarely break 1000 and I run usually between 400 and 600 in flower. PPM in there right now is 580, ph 5.9

Any input is greatly appreciated folks, thanks in advance

that looks like heat stress, my children get that shape during that hot periods of the day if their not getting enough water. mine put up with high 90's and are fine as long as they have plenty of water.
whats your schedule like, do you feed every watering, or off and on??
Also that beastie bloomz is pretty concentrated, as im sure your aware, it doesnt look bad though.. im thinking they just need more water

I'm in rdwc, buckets are full Temp is 76, humidity 45%

I know the beastie is hot, they only get a 1/4 tsp per 4 plants.......stumped

oo i thought u were in soil my bad.. hmm temps are fine as humidty
im going to say more potassium, it is what aids in water transpiration and thats what your plants are showing that they are having a hard time of doing... try to bump up the potassium, they are flowering too so they may be using more of it...

There's a thought..........