@Astarte,
oh ya i tried 10" and the leafs curled up and started to burn them right away, now im at 20" @30 dim level and noticing some bleaching on the top leafs, cant figure out if its the lights burning them or they need calmag. thats why i was wondering how far up you put your lights up when they where that small just to get a reference point and if u had the dimmed or not.
like