Use the same nutes that you'd use for hydro.
Change the water often, every 5 days max for clones, I'd say every 7-10 days for rooted plants.
Rockwool, sure, I suppose, but why? I guess you could just jam the rw cubes into the tubes or whatever you're using. I suppose you could also do this much larger scale and use net pots filled w/ geolite too... |