Coralline Crust Algae (Lithophyllum Byssoides) is a perennial aquatic in the Corallinaceae family with moderate care difficulty. It requires aquatic watering and full sun or partial shade light in USDA hardiness zones 10-30. This plant is safe for cats and dogs.

Lithophyllum byssoides is a coralline red alga that forms adherent crusts with a crinkled surface made of convoluted lamellae or finger-like protrusions.