Which sponge family lives in freshwater rivers and lakes?

The freshwater sponges that inhabit rivers and lakes belong to the family Spongillidae.1

These organisms are members of the class Demospongiae. While most sponges are marine, the Spongillidae have adapted to populate fresh water environments. They are often found in clean lake waters and slow-moving streams, where they may grow as encrusting or branching masses. These sponges frequently appear greenish in color due to a symbiotic relationship with algae that live within them.123