You searched for: “saprozoic
saprozoic (adjective), more saprozoic, most saprozoic
Applied to animals living on dead or decaying matter; saprophagous: Such saprozoic organisms obtain their nourishment by ingesting broken down organic and inorganic substances, like some protozoans and nematodes do.

A saprozoic lifeform feeds on organic material in solution, rather than on solid organic material.