Button Polyps Care Guide
Zoanthus sansibaricus · Saltwater Zoanthid
What Button Polyps look like
Zoanthus sansibaricus, commonly known as Button Polyps, exhibits a distinctive morphology characterized by its small, polyp-like structures that typically measure between 1 to 2 centimeters in diameter. The polyps are arranged in clusters and possess a cylindrical body with a prominent oral disc surrounded by a fringe of tentacles, which can vary in color from vibrant greens and blues to more muted browns and yellows. The maximum adult size of a colony can reach up to 30 centimeters across, depending on environmental conditions. Sexual dimorphism is not pronounced in this species; however, individual polyps may exhibit slight variations in coloration and size. Button Polyps possess a unique defensive adaptation in the form of nematocysts, which are specialized stinging cells that can deter potential predators. Additionally, their ability to retract into the substrate when threatened enhances their survival in the wild.
Behavior & temperament
Button Polyps are primarily sessile organisms that exhibit a degree of movement through the extension and retraction of their polyps. They engage in a form of feeding behavior known as passive suspension feeding, utilizing their tentacles to capture plankton and organic particles from the water column. These corals often form symbiotic relationships with zooxanthellae, photosynthetic algae that reside within their tissues, providing them with essential nutrients derived from sunlight. While they are generally peaceful and can coexist with other corals, they may exhibit aggressive behavior towards neighboring corals through the release of allelopathic chemicals. Their polyp extension patterns are influenced by light availability and water flow, with optimal feeding occurring during periods of increased water movement.
Diet & feeding
Button Polyps are primarily carnivorous, feeding on zooplankton and organic detritus in their natural habitat. In captivity, they thrive on a diet of finely chopped meaty foods, such as mysis shrimp and other marine proteins, along with supplemental feeding of phytoplankton.
Behind the name
The scientific name 'Zoanthus' is derived from the Greek words 'zoon,' meaning 'animal,' and 'anthos,' meaning 'flower,' reflecting the polyp's floral appearance. The species name 'sansibaricus' refers to its discovery in the waters surrounding Zanzibar.
Plan your tank
Check the numbers before you buy: tank volume, salinity, salt mix, water changes, and your ongoing care routine.
Keeping Button Polyps?
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