Maybe check ur PH I have mine adjusted to 6 how much u watering her u should water her when shes nice and light to lift and in the veg stage I only feed once a week hope this helps the big band looks nice and healthy
what I did this time round was before I potted was check the run off and adjusted till I was happy with this way and so far so good
not sayin its the propper way but its better than not doining anything sure give it ago