How do sea cucumber feeding tentacles capture food?

Sea cucumbers (class Holothuroidea) utilize their 10 or more retractile tentacles surrounding the mouth to capture food in several ways, depending on the species:12

• Suspension feeding: Some species remain attached to a surface and capture plankton using a network of branching, sticky tentacles.2
• Deposit feeding: Many species select food directly from the seafloor and use their tentacles to push the material into their mouths.2
• Sediment ingestion: A large number of holothurians, such as those in the genus Holothuria, act as deposit feeders similar to earthworms. They actively swallow mud and sand to extract and digest the organic constituents, later egesting the waste as characteristic castings.12

These tentacles are specialized structures that allow these echinoderms to efficiently exploit various food sources, ranging from small aquatic animals and nutrients found in mud to suspended organic matter.12