hydroponic HELP

im growing in clay pebbles under a 600w light should i let the roots grow a little before turning my flood and drain on or should i put it on straight away im using cuttings

The cuttings should be rooted before you put them in the clay balls under a 600 watt light. Good luck

How old are your cuttings?

they have rooted took them 4 days ago

Water with a low frequency to start out. Every 3 or 4 hours. Once they get good and rooted you can water more often