It's gotta be a nube question. But after 7 months of reading and 1 grow, I still don't know for sure. Do organic soils need to have nutes (bottled nutes, such as FF TB) added during growing? Or are they a just add water thing?
Not necessarily bottled nutes, but the 'food' in the soil gets consumed and needs to be replaced.
You have a full refrigerator after shopping, but how long does it stay full?
IDK, *water only* isn't exactly a myth, just not realistic. The mix would be seriously too hot to contain enough 'food' for just water only for a entire grow. It would be like you eating enough food to last say a week in one meal where you would just need 'water only.
In theory, you could do this, but not realistically.