Pineapple Poison

Hello guys, i finally got to start the first week of vegetation; the good news are that the good growth of the #1, #2 and #3 plants (i'm refferring to the photo) allowed me to do topping in the first week of vegetation. The first day of the week i did topping to the apical branch of the plants #1 e #2; instead after 3 days i did toppping to the two lateral branch of the plant #3 (that one have the apical branch borned by the middle of leaf stem) because the apical one wasn't ready yet. I did watering 3 days in this week, in the first two i gave them 1L with all nutrients for each plant and the other one ( in the last day of week) i gave them 1.5L of demineralized water adjusted by ph-down to try to reduce the cristallization of tap water's salts.