Coco in a Waterfarm

I have done a somewhat successful run doing this with a layer of hydrotone at the bottom. Was curious on thoughts about doing it this way. My train of thought was that im used to helping my buddy with his dtw coco, so this way I could try to have the benefit of a rez and constant feeding to the plant.

from Hydroponics / Aeroponics https://www.rollitup.org/t/coco-in-a-waterfarm.1026749/