I placed seeds from 5 different auto strains 1/2" deep into rapid rooter pots placed inside my running bubbleponics tub using some recommended nutrients, 6.5 PH inside a dark grow tent at 75 degrees and 70% humidity. After 6 days, only 2 seedlings have appeared. One is about 1 1/2" tall with no leaves. Am I doing something wrong??? Thanks for any help.