My humidity was always around 50 and I just used HPS for the whole life of the plants, so I don't know about the blue light (do you mean MH) or humidity, but the contraceptives I'm pretty sure is BS. Why go through the trouble anyway? Just lower your temps for the first 3 weeks of their life. With lower temps I get more females. And not just with these seeds, either. With any seeds I try.

Plus saves you money, you don't have to buy those feminized seeds anymore.
Perp Reviewed by Perp on . Male Female ratio i bought a pack of 10 seeds and planted 2, they turned out to be male, so i planted another 2 and i'm now waiting for them to show there sex, i was wondering what is the ratio between male and female in a typical bag of seeds? and what are the chances of 1 or both of my new ones being female? anything i can do to maximise the odds?:confused: Rating: 5