I have 4 clones that I started the start of april outside with supplemental lighting. They all look mostly healthy but 1 of them is having spotting on the lower fan leaves and I can't figure out from pictures online what exactly it would be and if I need to worry. Wondering if anyone has any information for me, thanks.
Here are the pictures of the plant. (Sour diesel clone)20200415_115310.jpg20200415_115318.jpg20200415_115332.jpg
 

lime73

Weed Modifier
Need more info on soil, nutes or water schedule, ph, all that good info to properly address any issue/s.
 
I used Foxfarm ocean forest potting soil. I used grow big as well and seemed all the plants saw some nutrient burn so I flushed them and they have done decent but not long after these spots occured on one of them. Also I water when the top layer is dry so about every other day. And I haven't been able to take Ph levels I don't actually have a tool.
 
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