Help black patches on leaves

C

Calen hadfield

Member
Hey guys need your assistance again growing an autoflower plants have noticed some black on a few leaves its 15 days from when it popped up so haven't been giving it any nutrients as of yet(planned to start nutes in week 3) grown in canna terra professional soil so soil ph is 6.0 by default ive been giving it plain phed 6.0-6.5 water
Growing under 240 watt led
Help/advice appreciated
 
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