One problem I've had is that I thought I'd grow in 5 gallon pots. Under LED that's too big for a Lowryder2 I'm finding. LED give off no heat, so they don't dry out much. My biggest issue I now think is that I've watered with distilled water that had a low PH. All that soil kept all that low PH water, and it locked up the nutes in the soil. I've only watered when it was getting dry...which with 5 gallons of soil under LED is about 3 times in 5 weeks. Live and learn. Autoflower under LED should be grown in no more than 3 gallons of soil I think.