3x Rainbow Zkittlez Clones [First Time]

First time growing! Got these Zkittlez clones, about 18cm on the day I got them. Repotted into 3L fabric pots on the same day and watered well. Watered about every 2-3 days after that. My equipment: Spider Farmer tent 70x70x160cm 2x Sanlight Q1W AC Infinity A4 Ventilation, Carbon Filter Canna Coco professional Plus Coco + standard issue Perlite 70/30 Canna Coco Fertilizer starter set 3L Fabric pots, 7L Fabric pots