@urbanfarmertv: Replying to @yan Yup! Just water, growing medium (rockwool) and some liquid nutrients. They do this in nasa as well. 🚀Check this out! 🤓 #ecofriendly #Sustainability #nasa #spacemission #spacex #homegarden #healthylifestyle #hobby #growyourown #GardeningAtHome #spiderfarmer #gardener #gardening #plants #hydroponics #indoorgarden