How To Use Progressive Web App aka PWA On 420 Magazine Forum
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my question is once the seeds crack and they sprout how long until you're going to change the light to 12/12?
That's called the veg cycle, takes at least 5 weeks if you want a decent sized plant, depends on how big you want her to get.
after 3 weeks old should i add quarter nutes to my plants and change to a 400watt hps bulb? they will be 3 weeks old 9 days from today
Age doesn't matter, it's all about the plant's size when to use nutes. Gotta wait until there are 4 sets of leaves at least then start at 1/4th strength nutes. HPS is best for flower, MH or CFL's are best for veg.