cal mag and seedlings do they need it ?

[budsofgeorgia]

do you give cal mag to 1 week old seedling ? and if not at what point do you generally start to add it

 

[Kamisama]

do you give cal mag to 1 week old seedling ? and if not at what point do you generally start to add it

yes... and if u grow in coco or hydroponic, u have to add Ca, Mg from the first day. Synthetic for hydro, aero...