See text Sycon is a genus of calcareous sponges belonging to the family Sycettidae.

These sponges are small, growing up to 7.5 cm with a length from 2.5 to 7.5 cm, and are tube-shaped and often white to cream in colour.

They are known to aquarium hobbyists as "Pineapple" or "Q-Tip" sponges, and are frequent "hitchhikers" accidentally brought in.

The following species are recognised in the genus Sycon:[1]

This article about a calcareous sponge is a stub.