My plants are about two and a half weeks old, still haven't given em any nutes. I am growing Hydro of course, but they were in soil prior to my getting them, so my guess is they are still receiving some nutes from the soil packed around their roots. I will start giving nutes in another week or so at 150 PPM to start gradually working my way up. I believe the clones I am getting tonight are just in rock wool, so I should probably nute those sooner than this batch eh?