In this article, artist Sergey Katran reflects on practice-based interaction with live nonhuman agents. A kombucha, cultivated at home, gradually assumes anthropic qualities and, promoted by the artist, even starts participating in exhibitions and roundtable discussions. This can be viewed as the first step in establishing and developing ideas of biocentrism within an artistic community. The author also views this case as precedent for the participation of other biological species (and nonhuman agents) in exhibitions normally intended for humans. As the cultivating of kombucha normally involves double fermentation, the artist then proceeds contemplating on the process and its possible outcomes. Fermentation, which brings about rapid change in the environment with subsequent synthesis of various substances, while yeast fungi and bacteria continue producing necessary ferments, is metaphorically linked to major changes in art and society.