First Time Growing From Seed

[Colorado420K]

A few questions here, at what point do I transfer my new plants to my hydro system and When should I start giving them there first nutrients?
today they are 12 days old
about the grow: 1000 watt hid (dimmable) big kahuna reflector (air cooled) htgs big boy hydroponic system grow medium: hydrostones
First time posting hope im doing this right.

 

[Emilya Green]

soon! You should have plenty of roots already and they should love hydro. In Hydro you give nutes pretty much all the time, that's why it works so well. Good luck! It sounds like you have some great equipment in place.