I have three CBD Auto-Flower Compassion Lime seedlings growing indoors in soil. The seedlings are on day 10 and 9 since they popped from the soil. Yesterday, the first set of leaves on last of the girls to pop, showed browning on the edges and they are now curling inward. See images below. I’m new to auto-flowering plants and want to know what I could be doing wrong.
3 x CBD auto Compassion Lime from Dutch Passion Seed Company
Each in a 5 gallon fabric pot
Seeds popped on the 8th and 9th June
Soil: recommended by specialist outlet
Fed only water which has been left standing overnight to get rid of chlorine and pH corrected to between 6.2 and 6.5
Light: 2x Kosheal 600w led grow lights and 5 x 24w CFl daylight lamps
Temperature: varies between 19 and 26 degrees Celsius
Humidity: Low 60s with lights off, mid 40s - low 50s with lights on
Nutrients: None added yet - not sure when to start.