Idran hybrids are plants. If too much water is added, their roots will rot.
Keiko O'Brien kept Idran hybrids aboard Deep Space 9 in 2373. In that year, Julian Bashir inadvertantly added too much water, killing them. Miles replaced them with Bajoran spiny basil. (DS9: "The Assignment")
- Idran hybrids seem to be named after the Idran system, a star system in the Gamma Quadrant.