Quote Originally Posted by madeline
I have been growing C99 since Mr Soul first sent out his Princess75's as testers way back in the middle 90's and also always have it in my garden. But 12 plants under 1600W? They are light-lovers but IMHO that's major overkill. I figure mine at 80-100W/sq ft with one plant/sq ft. IOW, in my system i could almost double the number of plants under the same wattage. I used to use 120-150W/sq ft but found no difference with the outcome after cutting down appx 40% of the power usage and also there was less concern about heat along with the time between waterings can be stretched out longer.

Also, I know of no strain that shows sex at 3 weeks from seed. Mine aren't even out of the seedling stage by then! I have some now that are 2 and a half weeks old and they are just now starting their adult leaf sections. I sex mine after alternating branches have started. Most strains have preflowers by then and can be sexed with a magnifying glass.

And be careful about that "49 day flowering time". When the Brothers Grimm were working the flowering time for C99 was about 7 weeks but since the original stock has been used up others have been making knockoffs and the strain has changed a bit over the years (they retired around early 2001). I suggest planning on 8-9 weeks. The buds get fatter with denser nuggets if given that extra 10 days or so. Try it with your next C99 harvest. Take a plant or two at 7 weeks but save the bulk for a later harvest. I'm sure you'll like the results better with just a little more patience.
So for around 2 - 3 plants would a 400W HPS light would be right? Or not enough.
ck_pza_pi Reviewed by ck_pza_pi on . Cinderlla 99 I need some advice on people who have grown it. Could I grow it with just some florescent lights or should I invest in some HPS lights? How long for them to grow from seed to harvest? With a 400W HPS light what would be my harvest weight per plant? Rating: 5