Organic squeezed lemonade

28 days since they came out of the soil. I believe this was the last week of vegetation, they are forming pre flowers for 3 days now. I'm serving them 35.000 Lux for 18 hours a day and watering 1.5L of pure tap water every 3 or 2 days. They are now showing their different phenos. #1 has a bushier shape, with nodes closer to each other with 36cm height and she isn't showing any purple colors yet. #2 and #3 are more stretchy, with longer internodal distance at 50ish height. Also both are already showing some purple colors, at the stem and on the little calixes forming on the pre flowers.