I my self started a thread talking about a hybrid hydro grow using Biosevia and Floranova as the nute basis, where you'd use one to feed the effective micros and the other to feed the plant directly, check it out if you have something to add.
Now from what I know Biosevia is only available in Europe as of now, this may have to do with the labeling issues going on in CA, considering GH US, had issues with its
General Organics line as well, I have no way of knowing for sure, but it's my guess that once they get the labeling and the new CDFA labeling program goes into effect.
I've seen articles and a few non-cannabis grows using it, and there's a few videos on Youtube, but very little as of now. As far as I know Biosevia is only special in that they have already processed a few of the key macro nutrients which in organic form are only available in large macro molecules, so to avoid the issues of clogging aero/drippers, they ground those into a fine micronized powder where they can colloidal stay in solution.