Iirc, the D. capillaris has gone crestate - fairly weird phenomenon.
On the Aquasoil - I remember that you were growing U. nephrophylla in the stuff. How deep do you have it & do you crush the top layer or leave it in the small spheres? Water level just below the surface & allowed to drop between waterings?
I was thinking about sowing some U. uniflora seed on crushed Aquasoil.