I just started my first crop with hydro-- I used lava rocks as my medium but - i was smoking and thinking last night that why do you need the rocks if you water frequently so the plants keep wet. I am using 4 inch rockwhool

does anyone know why you cant not use the lava rock and just have nute water filling an drianing every 3 hours.
herby potter Reviewed by herby potter on . hydro rocks I just started my first crop with hydro-- I used lava rocks as my medium but - i was smoking and thinking last night that why do you need the rocks if you water frequently so the plants keep wet. I am using 4 inch rockwhool does anyone know why you cant not use the lava rock and just have nute water filling an drianing every 3 hours. Rating: 5