I have a Hydroponic drip system and not sure when to start adding the nutes? they are 1 week old today and the pics below was just taken this morning.
please help
When you see roots hanging out the bottom of the pots, you can start to turn the nutes up. You are doing the right thing by allowing them to sit and grow roots before adding ferts.
'When they have roots they can handle nutes'
Bring the nutrient level up incrementally. Bring the nutes up to 350 ppm once you see they all have roots. In about three days they will start to take off. When they start to branch out, bring the nutes up to 500 ppm for three days then step it up to 700 or 800 over the next week.