New medical grower needs help

[Medpatient1]

I has curling leaves not caused by overwatering. It started with one girl and now has moved to her sister beside her. I don't have money to spend on fancy equipment or test. I don't know what to do can someone look at pictures to see if they can tell me what this is? Please help!

 

[Stoner Jay]

What's the temp's in your cab ? May be heat stress, but without pics. Will be difficult for the more experienced to help

 

[Dankwolf]

With out pic hard to know for sure but if i where to geuss blindly lol i would say too hot in grow area and or too much nitrogen and or plants too close to lights and or possibly a bluberry strain that does it genteticly. Pic is really needed with out its a guessing game for sure .