HELP week 3 tangerine dream 400w

hi i just started flowering im week 3 havin problems with the big fan leaves thier al dieinng out drying up i just wanted to make sure if everythings cool or is it normal or is it sumething witht the nutes im using sensi bloom and i just added big bud like 2 days ago heres sum pics thanks help!!!!

what are your temps at its a lil early for the leaves to be falling like that

Very early, not right, what are the temps and what nutes you using, did you switch?