Check out this thread.
www.420magazine.com
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Mixed Hydro - Water Culture - Coco/Perlite
I'm running two Nirvana Supreme CBD Kush, in 75%coco/25% perlite... In the waterfarms L>R, Blackberry x2, and one Blue Mystic.... The only nutrient used throughout grow will be GH Floranova Bloom.... Haven't used any other fertilizer for years.... It's definitely a lazy mans fertilizer...
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