I am a new grower...I'm doing auto flowers on number 6 plant ..I'm using great white and fox farms root stuff when there young...then super thrive and the 3 fox farms as they grow..then ginormous..and big bud ..I use just trace amounts..my plants seem to be huge some with double colas..using fox farms frog soil..small grow room mini sunburst..5 giant cfls some blue LEDs and 2 flouresants...each plant gets larger and larger buds..I'm having only 1 problem some times towards the end I get a bit of yellowing leaves...I rinse stop fertilizer ...I'm not sure if it's over fertilizing or lack of something...I will learn to post a pic..but I don't know how yet ..it almost looks like a cal mag def...any thoughts...I'm growing for some 911 retired cops that are so sick from there exposure down thereðŸ˜