I’m curious to see if the “red elixir” is dangerous or if it has a specific use for animals. Xiao Hei’s reaction—sniffing it out, licking it, and collapsing into a deep sleep—suggests a strong biological effect. It seems less about plant growth and more about animal transformation. Maybe it can heal, enhance, or even evolve living creatures. This creates a separate, exciting branch of possibilities for the story. If the green elixir is for plants, the red one might be for animals. The author has set up two parallel magic systems, which is a good way to add variety and complexity.