Imo Rule of thumb I take is the roots will be twice as long /wide as the tops. I am no expert but I have had plenty of first hand experience and are only willing to help if I can.
Sweet just wish to have a cool switch over for sumer heat wise current hps keep things toasty just extreme cooling lots of noise. How many plants do have under one? Have you used other lights?
Hi your doing well as far as sex of a plant a male will always be a male. A female plant will always be female even if seeded by a male. Only other time will if a female plant is stressed it may become a female with male pollen sacks
Hi it's alive good start imo I wouldn't feed any nutes until it has used it's first leaves the round ones not sure of the technical name for it. The soil is it straight out of the ground?
As I read there are many strains that ate just painfully probmatic from the beginning as all clones carry the genetic traits good and bad. Haven't heard much good news with my current strain but there are so many factors in play.