need advice please leaf drying out

Ok so one of my plants leafs are drying out and yellow spots . It might be nut burn or something.
Please leave ur comments. Any info is good info thanks. Sry can't up?oad the pic from my phone.

If its 1 its no big deal,what is your meduim,nutes,temps,how often do you water? it could be nutrient lock out check your ph