Follow Zandors advice! No commercial or profession, knowledgable expert grower will ever tell you to use 24/0 It is a proven fact that less than 18 hours in fact 16/8 is optimum for rooting, and optimum for helping to determine female sex. Goodluck.

I have an entire article I did with an excerpt from an article by "Henk" of "Dutch Passion Seeds" I think he knows what he is talking about'eh