Distribution: Australia, Indonesia Coloration: May be solid or banded in many different colors and combinations of colors Care level: Medium Lighting requirements: Moderate Flow: Low to moderate SG: 1.023-1.026. Calcium: 400-500. Alk: 8-12. Magnesium: 1350-1500. Temperature: 76-82 Growth: Very slow Cynarina is a solitary, sand dwelling, large polyp stony coral. It forms a radial skeleton with sharp septal ridges protruding from the top surface like spokes. Surrounding a large central mouth and oral disc, fleshy colorful bubbles will extend past the skeleton during daylight hours in order to maximize photosynthetic area. I've kept many cynarinas over the years, and have found that their care requirements are typical of most fleshy sand dwelling LPS in that their main requirement is stability. You can easily keep them at all ends of common reef chemistry spectra as long as it is kept stable. Alkalinity is especially important to keep stable when keeping cynarina. They are relatively adaptive when it comes to both flow and light although it is always much safer to start them on the lower end of both.