Cat eyes Bubble Coral

Plerogyra sinuosa, commonly referred to as Cat eyes Bubble Coral or bubble coral, is a captivating member of the Cnidaria phylum. It is distinguished by its grape-sized 'bubbles' that swell during the day when exposed to light and contract at night when the coral extends its tentacles for feeding. This unique adaptation increases the coral's surface area for light absorption while providing a habitat for various marine organisms. The vibrant, fleshy bubbles can vary in color, typically showcasing shades of green, brown, or purple, contributing to the aesthetic appeal of any reef aquarium.

Bubble coral is native to a wide range of tropical marine environments, ranging from the Red Sea and Madagascar in the western Indian Ocean to Okinawa and the Line Islands in the Pacific. These corals thrive in shallow waters, often found on reef slopes where they benefit from moderate water movement and appropriate light levels. They form large colonies and can grow to substantial sizes, creating impressive displays in aquascapes.

Behaviorally, Plerogyra sinuosa is known for its symbiotic relationship with zooxanthellae, which live within its tissues and provide essential nutrients through photosynthesis. This species is primarily nocturnal in its feeding habits, extending its tentacles to capture plankton and other small particles from the water column. They are generally peaceful corals that can coexist with various marine species, making them a favorite choice for both novice and experienced aquarists.

In terms of natural habitat, bubble coral prefers areas with low light intensity and gentle water flow, where it can thrive without competition from more aggressive coral species. Its resilience and adaptability make it a popular choice among aquarium enthusiasts, adding both beauty and diversity to reef tanks.

Caring for Plerogyra sinuosa requires attention to specific water parameters to ensure its health and vitality. Ideal conditions include a water temperature between 24°C to 28°C, a salinity range of 1.020 to 1.025 ppt, and a pH level between 8.1 and 8.4. This species prefers low to moderate lighting, so positioning it in shaded areas or using dim lighting can help prevent stress.

Feeding bubble coral involves providing it with a mix of small meaty foods, such as zooplankton, or high-quality coral pellets. While it relies on its symbiotic algae for nutrition, regular supplemental feeding enhances its growth and vibrant appearance. Compatibility is generally favorable, but care should be taken when housing Plerogyra sinuosa with more aggressive corals or species that may disturb its delicate structure.

Acclimation is crucial when introducing this coral to a new environment; a slow drip acclimation method is recommended to minimize stress. Quarantine procedures should be observed to prevent the introduction of pests or diseases. Overall, with the right care and conditions, Cat eyes Bubble Coral can thrive and provide a stunning focal point in any reef aquarium.

Plerogyra sinuosa is suitable for shipping under controlled conditions. It should be packed with care to minimize movement and protect its delicate structure. The ideal shipping temperature is between 20°C and 25°C to prevent thermal shock. A packing density of 1-2 corals per liter is recommended to ensure adequate space and water circulation. This species is not listed under CITES, simplifying export regulations.