looks like light maybe to far away. I am grow white widow also nom auto. as far as watering . i started mine i. aerogarden then switched to soil. with soil soaked. haven't watered for a while since it is still moist. my other plant is small like yours . I use a hydrometer to see what the moisture is at roots. to avoid root rot. these are my first ever grows and using everything I gotta to make sure not to screw up lol
like