Hi there,
I am growing 9 LSD autos, 600W dual spectrum parabolic, 35 days old, 75cm (30 inches) height, 20 liters of tomato soil (NPK 12-14-24) and haven't feed at all. I have FloraTrio, but not sure to feed or not. The leaves are dark green and some leaves near the light are with yellow tips, the yellowing seems like light burn (lights never closer than 16 inches) but maybe copper deficiency. I don't know is there still enough feed in the soil or opposite?
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