i have what I believe is a sterile dwc grow, I sometimes add a scoops of Azos or Mykos. But not sugar. But I have been thinking about making a earthworm casting tea, with azos, and during the final week or so of the plants life add that to the reservoir. To see what happens, since it’s the last week, nothing too bad could happen as I would remove the plants anyways. It’s just I was thinking about how they say hydro doesn’t have the ‘tastes’ like soil does, so maybe in the final weeks a rich compost tea could add some flavor