I don't understand why you're giving neem oil? And why are you considering adding calmag? Calmag is used when plants are in flower IF THEY NEED IT... What they need now is some grow nutes (when you start them, only start with 1/4 - 1/2 strength!). This will green them up and help them with their growth.
You were given some criticism for starting your plants in "too large a pot" which was goofy... you were absolutely correct to start your grow in the pot size they're going to finish in... autoflowers are NOT like photoperiods - they do NOT like to be transplanted at all so kudos to you for doing that.
See my answer to your other question as far as watering is concerned....
Good luck!