Urgent!!!! What is my problem?

I have checked the stickies but I could not decide
please help me out...

Here are some more to help out

I have two rough ideas
First one, my friend sprayed/misted them with an organic water based mix during light cycle, it may have burned them
or
The ph down we use has lowered the water ph down too much maybe?

kodomo said:

I have two rough ideas
First one, my friend sprayed/misted them with an organic water based mix during light cycle, it may have burned them
or
The ph down we use has lowered the water ph down too much maybe?

Click to expand...

Looks like you have the answer.

Misting with fertilizer, not intended for foliar feeding. Next time use fish emulsion. It's smelly but it's great for foliar feeding.

those lil white spots are damage from spider mites! if you look at the curled leaves you will see eggs and webs (mainly on the undersides of the curled leaves.) it could have been the nute spray but i spray in the day all the time and it dont cause that. go get some neem oil and spray the undersides of all leaves in the room and when your done , spray the top of every leaf, then use the rest to spray around your room. hope that helps!