Whats wrong? HELP

I think it might be nute burn or from it being too hott in the room im not sure.

temp in the room? kind of nutes u usin? always give info when asking for plant problems. check this itll help. looks like a nitrogen deficiency with a lil nute burn

https://www.rollitup.org/marijuana-plant-problems/53456-phosphorous-problems.html

Size of Pots?

the temp is on average 75 but the 24 hour high is 83 and the low is 55 im working on making it more of an average temp. i use 1/4 strength miracle grow every other watering. and they are in 4 inch pots right now and on the 16th they will go into 3 gallon grow bags and start flowering.

Hey man it looks to me like a ph imbalance. Ive never used miracle grow anything and everything ive heard about MG has been bad. Do you PH the water when u add nutes with every other watering? Even 1/4 strength could drop the ph a good 2-3. I would suggest stopping all nutes and just use plain water for the next week then resume the normal feeding schedule. If it worsens during this week then flush the plants with room temp water. Buy some cheap ph test strips from a pool store and test when u add the nutes. Get it between 6.1-7 for soil. Nutes will always lower the ph so add baking soda to up the ph to the desired range.

check your pH and i would only feed maybe once a week with nutes.

Duece.

OH WOW > STOP THE MG NUTES. those will burn yer shit bad. find some fox farm or my favorite . flora nova. on ebay . once again stop the mg nutes.

If you used potting soil with nutes in it already, just use pH'd water.

Majority of what I've read thus far is to give the nutes once going into flowering.