Put them im soil and get those lights closer bury the stems up to about an inch from the seed leaves Sent from my SGH-T599N using Grasscity Forum mobile app
Please do not put 6-7 inches of gravel/sand in your container, that's valuable root area lost, as well as the possibility of a perched water table. If you have the drainage holes on the bottom of your container you'll be fine.
I would put them in my 6" coco pots at this point and move the light right on top of them. If they are not autoflowering plants then you want to transplant or "pot up" at least 2 if not 3 times. This helps build super solid root systems.
Bigger pots and more light try 4 100 watt cfls on a power strip you can get bulb socket that plug directly into the power strip at walmart the leafs will grow bigger than head good stater light Sent from my LGL86C using Grasscity Forum mobile app
Plz dont waste your root room sticking in things like gravle and sand. Sand can be used in soil mixes but not in bottom of pots. Give thoes 6-7" to the dirt. And you dont know if here male or female. Dont waste the room with big pots. And waste water and nutrients. Be smart. Sent from my SGH-I747M using Grasscity Forum mobile app