what is lmo? jhmo? anyways. yeah nutrient less soil what i use or a soil with very low nutrient content so i can be more in control of nutrient uptake but like he said lower start up cost, less maintenance and it gives you plenty of time to fix whats wrong. i want to swap to hydro but only if i can take my soil with me thats why im learning about ebb and flow systems. its just hard finding a 2x4 table for cheap. i have been messing around with DWC its pretty easy but you have to adjust pH every day pain in the ass.