Only thing I see there that I would feed would be the open brain. I'd put one silver side in it per week. That's about it. Xenia and Kenya trees will grow in a toilet, if you put a light on it. Shrooms are very hardy as well. Monti needs good lighting and flow more that food IME. Not sure about phytoplex, but some lugols solution (iodine) would benefit the shrooms, kenya, and xenia.
Hope it helps.