Uhm, his plants look decent but there is definitely something that is off. Those lower leaves dont die of unnecessarily. It could be a nutrient issue, but you didnt tell us your schedule or brand of nutes. Also 1260 lumens isnt going to help in the long run. You have to pick either indoor or outdoor for optimal results is what I understand. What was your plan for flowering? If you choose indoor, you would need atleast 8-10 23 watt CFL bulbs with that lumen output. As far as the infestation, Im not sure as I do my growing indoors and neem oil takes care of most pests.