This bit about infusoria on Java Moss may not be as true as was once thought. I recently read information from a guy who claims to have put this to a microscope to verify and he says the moss was devoid of extraneous life forms. Is that always the case ? Who knows ? I have to wonder why it would be an infusoria oasis when most infusorians are bacteriovores. I started culturing paramecium and they are small but not so small as to be undetectable with the naked eye. If there is something smaller than that then I would be sure to have it on hand were I thinking about spawning Tetra's. You read on this forum all the time about people losing fry because they didn't have the right fry foods on hand. Don't let that happen to you. Often you will accidentally succeed with a fish and to lose the fry would be heartbreaking if you couldn't duplicate your success .