Not familiar with EMM AUTO , however I do autos .
12/12 is not very efficient in growing any auto strains.
It needs as much light as you can throw at it .... 24/0 , 20/4 or 18/6.
You cannot treat them like photoperiod either ... they like lighter feed , no stress , controlled watering , etc.
Under 12/12 they will not be very large flowers , since it’s short lifespan is now even shorter.
Need more info on grow ...
Nutes
Water
Medium
Rh
Temps