Yellowing/Rust Looking Spots Happening on Top Leaves. Coco Coir GH Nutes/ProTekt 1Gal Fabric Pot I assumed ph was off, might have been to low. I use droppers to test. I raised it higher, looks like itd be higher than 5 but lower than 6.(runoff ph) I overdid it on Foilar spraying too. CalMag Defic? Folair feed Burn from Lights? PH lockout?.....A type of Mold? I hope its any except the mold. The white spots I think are from foilar spraying with Pro Tekt. Spots appeared this morning while the yellowing of leaf has been 2days but hasnt yellowed more.