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hello, aeroponic system with reverse osmosis water and from the beginning I have a problem with calcium deficiency, vegetation lasted 3 weeks, flowering 3 days I use masterblend 4-18-38, calcium 15.5-0-0 (19%) and epson salt and add monosilicon (power si) and amino acids Co2-1400 ppfd-1000...

my plants are in medium soil during vegetation, my EC is twice as high at the drain, I did a flush and now the question is, if I water with clean tap water EC 0.6 PPM 300 HOW MUCH SHOULD I HAVE an EC runoff? thx

maximum yield from potting soil my best result is 320g-11oz

Hi my girls are SWEET ZZ (ROYAL QUEEN SEEDS) FEMINIZED and I have a problem they are now in the 8th week of flowering for the week of felling, they have been getting extra UV light for two weeks my question - he has black trichimes what does this mean?

https://www.researchgate.net/publication/333438844_Increasing_Inflorescence_Dry_Weight_and_Cannabinoid_Content_in_Medical_Cannabis_Using_Controlled_Drought_Stress#pf4 What do you think about it,