best auto strain for a newbie??

hbds are beastmode

ok starting back left barneys sweet tooth 3 weeks left front bhd this is one of the smaller pheno's day 40 right front is dinafems white widow auto only about half in the photo day 32-35 back right barneys pineapple express auto day 40-42 having a problem with this one on 24/0 prolly gonna cut back to 18/6 just for this one first time with this problem second pic is bhd close up see the claw leaves to much N was late with flower nute switch also forgot to flush between <~~~ not advice just from my experience

they will be a few weeks behind what the breeder calls only running 360 true wattage of cfls 2700k

So far ive researched over 20-30 hours and ive never heard of cal-mag or what ever it was but I will look into it although I probably wont use it unless it's absolutely necessary! But thanks anyways mate