ppm 850, ph 5.9, temp 76-82, humidity 45-54ish, flood and drain hydro, water 3 min 4x a day. 600watt hps 6inch inline 440 cfm with carbon filter...ok so 3rd week into flowering and my plants are budding but my bottom leaves are still drying out and dying, doesn't really look as if my plants are growing either. I cant fig out what to do, ive tried everything I can think of..can anyone help or tell me what the issue can be?
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