Cynarina Button Coral Care Guide
Cynarina lacrymalis · Saltwater LPS Coral

What Cynarina Button Coral look like
Cynarina lacrymalis, commonly known as the Cynarina Button Coral, exhibits a distinctive morphology characterized by a large, solitary polyp that can reach a maximum diameter of up to 12 inches (30 cm). The polyp features a prominent, fleshy body with a smooth surface texture, displaying a variety of colors ranging from green to brown, often with contrasting patterns of white or cream. The oral disc is broad and surrounded by a series of elongated tentacles that can extend significantly when the coral is feeding or during the night, showcasing a unique arrangement that aids in capturing planktonic food. Sexual dimorphism is not pronounced in this species, although individual specimens may exhibit slight variations in coloration and size. Defensive adaptations include the presence of nematocysts within the tentacles, which can deliver a mild sting to potential threats. The coral's structure is supported by a robust skeleton composed of aragonite, which is less prominent in solitary species compared to colonial corals.
Behavior & temperament
Cynarina lacrymalis is primarily a nocturnal feeder, extending its tentacles at night to capture zooplankton and other small particulate matter from the water column. It exhibits a relatively sedentary lifestyle, remaining anchored to the substrate while utilizing its tentacles for feeding. This species can engage in aggressive interactions with neighboring corals through the use of its stinging cells, particularly when competing for space and resources. Although it is generally considered to have a calm temperament, it can exhibit territorial behavior when placed in close proximity to other corals. In terms of symbiotic relationships, Cynarina lacrymalis may host zooxanthellae, which contribute to its energy needs through photosynthesis, although it primarily relies on heterotrophic feeding.
Diet & feeding
Cynarina lacrymalis is primarily a carnivorous coral, feeding on zooplankton and small organic particles in the water column. In captivity, it requires a diet supplemented with finely chopped meaty foods, such as mysis shrimp and other marine proteins, along with occasional phytoplankton for optimal health.
Behind the name
The genus name 'Cynarina' is derived from the Greek word 'kynos', meaning 'dog', possibly referring to the shape of the coral, while the species name 'lacrymalis' comes from the Latin word 'lacrima', meaning 'tear', likely alluding to the coral's tear-shaped appearance.
Plan your tank
Check the numbers before you buy: tank volume, salinity, salt mix, water changes, and your ongoing care routine.
Keeping Cynarina Button Coral?
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