HI guys prolly a dumb question but i was wonderin if clay pebbles could b used with manual feeding instead of soil and not in a hydro system ? plan being i want 2 transport my large rockwool cubes into a pot of pebbles and feed manually instead of a dripper system, in my head this should work but as im fairly new 2 this id appreciate your help & advice i was originally goin 2 use coco but thought the pebbles would b better.