what did u grow? I'm just using 1 600w led true watt 270 for 4 plant as u can see even just the plants shape lol exept the big 1 that its own bit lol yeh man am not even using chemicals just organic soil n organic ferts flores only no veg feed but even then in total from 2 and a half months ive seriously only fed them 6 times total the rest was water only , with this medium and the bio organic canna nuits defo worth giving a try https://www.maxgrowshop.com/en/canna-bio/787-biocanna-bio-terra-plus-50-l.htmlI grew auto plants and they still got huge.Mine were in 1 gal.smart pots.Very nice tho.Peace