cant figure out why these leaves are turning and what the spotting is from..if anyone has any advice thanks for your time btw its mostly on the smaller ones

H=Answer if you grow hydro or aero
C=Answer if you grow coco
S=Answer if you grow traditional soil
L=Answer if you grow soilless other than coco (Promix, Hyponex, SunshineMix)
R=Answer if you grow in RockWool
T=Answer if you grow in HydroTon
D=Answer if you run any type of automatic drip system, including into soil or soilless
E= EVERYONE needs to answer lol!


E-indoor
E-soil
E-soil
CSL-Soil roots organic
HCL-Hydro/aero/soilless system type
SCL-bit of malibu compost, bit of microhhyzzae
SCLR-unknown
E-tap (let it sit with water conditioner for bout 10-20min usually before adding nutes)
E-5.8-6.2
HRT-Source water EC (if hydro)
E-6 wks flower...prob vegged 4 wks
E-house and garden cocos a & b, also compost tea every once in awhile, along with house and garden additives like bud xl and top shooter, also giving sugaree from cutting edge here n there
E-moderate feeding ppm sometimes as low as 300 but sometimes highest like 1200...500-1000ppm is normal
E-4x600hps 2x1000hps
E-Air temperature (both day 72-78 and night 60-65)
HD-Reservoir temperature
E-40% but spikes up to 80...i think right after lights go off..still working on this problem also sometimes goes down to like 29
E-12 on 12 off
E-10in max fan with 10x48 carbon filter, 10 inch intake fan
TR-Did you pre-soak your media in pH corrected solution?