Frags will be 2-4 polyps. Introduction to Zoanthids Zoanthids are one of the most popular corals in the reef-keeping hobby, admired for their vibrant, fluorescent colors and rapid growth. These soft corals form colonial mats of individual polyps, creating stunning carpets of color that can quickly transform reef aquariums. Popular varieties like “Rastas,” “Eagle Eyes,” and “Pandoras” showcase the incredible range of patterns and hues Zoanthids have to offer, making them a favorite among hobbyists of all experience levels. Zoanthids are often grouped with their close relatives, Palythoa. While similar in appearance, Palythoa species tend to have larger polyps and thicker mat formations. A key distinction is the potential production of palytoxin, a potent toxin found in some Palythoa and Zoanthid species. This toxin can be harmful to humans and pets, so handling these corals with care is essential. Always wear gloves and eye protection when working with them, and avoid exposing them to high heat, which can release toxins into the air. Known for their adaptability, Zoanthids thrive in a variety of tank setups. Their ability to grow quickly and form colorful colonies makes them an excellent choice for adding visual interest and texture to your reef. Location These soft corals are found in shallow reef environments throughout the Indo-Pacific region, including areas near Indonesia, Fiji, and the Great Barrier Reef. They typically inhabit rocky outcrops, reef flats, and lagoonal zones where water movement is moderate, and lighting is plentiful. These colonial polyps attach themselves to hard substrates such as rocks, rubble, or dead coral skeletons, creating dense mats or carpets. In their natural habitat, Zoanthids contribute to the biodiversity of the reef, offering shelter and surface area for small reef inhabitants like shrimp, crabs, and gobies. Water Chemistry Zoanthids are relatively hardy and adaptable, making them an excellent choice for a wide range of reef systems. Maintaining stable water parameters ensures their health and vibrant coloration: Calcium: 380-450 ppm Alkalinity: 8-9.5 dKH Magnesium: 1250-1350 ppm Nitrates: 5-15 ppm Phosphates: