The seed sprouted 17.11.2018, which means it took 4 days. For those who are interested in additional info, I keep constant VPD value of 0.62kPa to 0.91kPa. The LEDs are set to Veg mode and are being kept exactly as manufacturer suggests or 90-100 cm. (35-40 inches) away from the plant during the seedling stage. The temperature is within 20-22 Celsius during the day and 16-18 during the night. I set the light schedule to 20/4 hours of light, because I want to achieve maximum vegetative activity.