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Most super soil are good with just water for about 6 weeks before you have to start giving nutrients or compost tea.
Well in veg stage your plants look for more nitrogen. And in flower stage they look for phosphorus. So nutrients CAN be beneficial. Some start to...
I usually wait already 5-6 weeks from sprout before I flop to 12/12. But I agree with nobighurry ..if you plan to use grow techniques then you may...
UP Yuri