Hi! How much water do give her? Looks a little bit overwatered.
My Eddies got 1-1.5 l every 3 days including nuts at this age.
Light shedule was 20/4 with 160 watts (5x 13 W Led bulbs 2700K rest cheap adjustable china plant led panel) for 4 plants in a 0.6mx0.6m tent.
For nut problems google for marijuana-deficiency-chart-jorge-cervantes.jpg. Maybe you can find out by yourself. I won't give any advices cause of no experience with this problem 😳
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