These plants are about a month old in RDWC 25 gal system. I'm using Lucas GH micro/bloom at 8/16 with RO water with nothing else but EWC tea. I've read where people say Lucas has enough cal/mg in it and you dont need to use anything else and I've seen people on some forums consider 6/9 micro/bloom as what Lucas should be in DWC I assume to add more micro for cal/mg or N? So for a about a week now I've had these brown spots which started at the very most bottom fan leaves from the first node and are now moving up the plant slowly. My PH is 5.8 all the time and is very stable so should I be moving it up or down to get better uptake? I see some charts say Mg isn't absorbed untill above 5.8 and Mn not untill below 5.6 I think. Am I just locking out something or do I have a deficiency?![IMG_1043.jpg](/data/attachments/1985/1985288-e60110650e9ce674809a47836e2985f7.jpg)
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