Ethos Lilac Diesel Auto RBx2

Today marks 28 days above ground. 2 of the plants are going strong with 1 still being a little runty. The 2 strong plants started to preflower a few days ago. The runt is showing no signs of preflower yet. I started LST on all 3 plants. The strong plants are showing some really nice lateral branching. It’s taken a lot of leaf tucking but we are on our way to a nice canopy. The medium used is FF CocoLoco which is supposed to be pretty nutrient dense. This seems to be the case as these plants have had no nutrients other than silica and calmag. I’ve been watering with purified water fe the store (hence the camag and low ppm) but will be switching to tap soon as watering needs increase. My tap is around 300ppm so I’ll be dropping the calmag once I make that switch