have read the problem guides still I am stumped.Plants are doing fine through veg and 2 weeks into 12/12.after 2 weeks of 12/12 leaves look like they have measeles little brown spots leaves are covered in these spots starts with old leaves first and spreads rapidly til yellowing and eventually killing the plant. I believe this is a magnesium deficiency have tried epson salts to no prevail. Now im going to ask a stupid question so be patient ( I have done 6 grows all excellent results and never tested my PH levels in my soil)am doing the same regiment with different strain(NLf2)and is it possible that my ph levels are out of wack and causing a nute lockout?water intake has slowed after 2nd week of 12/12.My feeding schedule if this helps (Miracle grow 18-18-21 1/3strength Floralicious Bloom 1 ts per gallon)I feed 1nce a week and water halfway through the week using 400 w HPS 3 gall pots Thanks in advance all for the help Temps 75 -81 45%RH have ph tester now different pots reading between 4.7 and 5.1 anyone tell me how to raise the ph cheaply (plants with ph of 5.1 are healthier than the ones with 4.7)
