Marimo Ball Basics
Their fun shape, movement, and minimal care requirements make marimo moss balls an attractive addition to plant bowls and freshwater aquariums. Not actually a moss, marimo balls (Aegagropila linnaei, also known as Cladophora balls and lake balls) are rare spherical-shaped, noninvasive algae with a velvet-like appearance. The species are native to Lake Akan in Japan, where they are designated as a national treasure and believed to bring good luck. Also found in parts of Europe and Iceland, they are considered endangered and...