[2] A single tube can grow up to 5 feet (1.5 m) high and 3 inches (7.6 cm) thick.

These sponges mostly live in the Western Atlantic Ocean: the Caribbean, The Bahamas, Florida, and Bonaire.

Like most sponges, they are filter feeders; they eat food such as plankton or suspended detritus as it passes them.

Tubes occur in varying colors including lavender, pink, gray, and brown.

The population density of these sponges is decreasing because of oil spills and other pollution.