1st time grow auto white widow

Growth is still going well. I snipped off some bottom leaves and some other leaves that didn't look so great. I invested in a jewelers loupe to get up close and personal. Not seeing a lot of size in the buds yet but I read the size will come in the last couple of weeks. I noticed some browning on the leaf tips of the parts closest to the light so I moved the light up from 14 inches to 17 inches. I did change from a 6.5 gallon bucket to a 5 gallon but i'm only using 4 gallons of water. My next dwc grow will be in a 3.5 gallon bucket. The root system doesn't get really big and it's a waste of nutrients. My girl is drinking around 3/4 of a gallon a week now. I already have auto strawberry cheesecake and auto gelato in the aerogarden. Hopefully in 2-3 weeks I can harvest.