Considering your pot sizes and wattage of the lamps, you can expect to havest about 500 gramms total in about 12 weeks.
Talk to your plants! They dont understand you, but they can use the carbondioxide from you. 😁
Time, to bend it over. 😉
Half a gallon of water per plant? Are you serious? I cant believe this. Half a litre per day, would be enough, at this stage.
What is the timing of your light? 19 h on, 5 h off? How about 10h on 2 h off, 10 h on and 2 h off?