First 2 weeks only give light watering every 2 or 3 days, kept the lights on 24hr, kept humidity to 50% with average temp being 23 Celsius. Canna coco professional soil meant I didn’t have to introduced nutrients until roughly day 15 - 20
Maybe overwatering allways use 1/4 of nutes for autoflowers pal or half dose if they are strong and healthy... feed light but let them dry up before you next feed 🌱💚
Also the ffs need 12/12 light cycle too flower and the autos wont like being lowered too that from what I've found... auto need 18/6 throughout 🌱 happy growing