Fan leaves have yellow spots and folding up

LAVENDER GROW
FOX FARM OCEAN SOIL
PERLITE
GH 3 PART
BCUZZ BLOOM
BIG BUD
R.O. WATER
TEMPS ARE FROM 70-80 DEGREES
HUMIDITY ARE FROM 20-30
PLANTS ARE 12 INCHES AWAY FROM MY HOOD
400 WATT HPS


I'M A MONTH INTO FLOWERING
LET ME KNOW IF I LEFT OUT ANYTHING ELSE. i WAS LOOKING THROUGH THE PLANT PROBLEM FAQS AND JUST WANTED TO SHARE A PIC OF MY PROBLEM TO HAVE YOU GUYS TAKE A LOOK AT IT. THANKS IN ADVANCE

air cooled light or no?

light is aircooled

i also water once a week