I have found gel works better than powder. Gel in an aero-rooter works awesomely fast 2-5days depending on the strain.
jamessr Reviewed by jamessr on . Cloning hormone needed? It's been a while since I have grown but when I did about 15 years ago, I was growing hydroponic. Anyway, when I first started cloning I was using powder, moved to gel and eventually stopped using anything at all. In fact I stopped using it when I tested two trays of clones from the same mother, one with hormone and one without and there was no noticeable difference in rooting time between the two trays. Eventually I was just giving them a spray a couple times a day with a very dilute seaweed Rating: 5