Green Cabbage Leather

Green Cabbage Leather, Sinularia spp. and related species, is a hardy photosynthetic leather coral known for its broad, folded lobes and distinctive cabbage-like growth form. This specimen displays rich fluorescent green tissue with numerous small polyps extending from the surface and margins, giving the colony added texture when fully expanded.

Cabbage leather corals develop thick, fleshy lobes rather than producing a hard calcium carbonate skeleton like stony corals. As the colony grows, the tissue forms overlapping folds, plates, and rounded lobes that can resemble the leaves of a cabbage. Mature colonies can become substantial display pieces and provide both color and movement within a reef aquarium.

The Green Cabbage Leather is particularly attractive because its coloration extends throughout the colony. Under blue-rich reef aquarium lighting, the tissue can display vivid fluorescent green tones, while the extended polyps add another layer of brightness and texture.

Like other photosynthetic leather corals, Sinularia contains symbiotic photosynthetic dinoflagellates that provide much of its nutritional energy. The small polyps may also capture fine suspended organic material and plankton from the water column, although routine target feeding is generally unnecessary.

Moderate lighting and moderate, variable water movement are generally appropriate. Good circulation is particularly important for leather corals because it helps prevent detritus from settling between the folds and assists the coral when it periodically sheds a thin surface film.

Leather corals may occasionally retract their polyps and develop a smooth or waxy appearance while shedding their outer surface layer. This is a normal process. Adequate water movement helps the old film detach and allows the polyps to reopen afterward.

Green Cabbage Leather can become a relatively large colony as it matures, so it should be provided with adequate room for expansion. Leather corals may also release organic compounds into the surrounding water that can affect neighboring corals. Maintaining good filtration, regular water changes, and activated carbon can help reduce accumulation of these compounds in mixed reef aquariums.

Because cabbage leather is a common aquarium trade name applied to more than one closely related leather coral and exact species identification often requires microscopic examination of internal skeletal elements called sclerites, Sinularia spp. and related species is the most scientifically responsible identification for this specimen.

Care Guide:

Scientific Identification: Sinularia spp. and related species
Common Name: Green Cabbage Leather Coral
Care Level: Easy
Lighting: Low to Moderate
Water Flow: Moderate, indirect and variable
Placement: Lower to middle areas of the aquarium depending on lighting intensity
Temperament: Semi-aggressive through chemical competition; provide reasonable space from neighboring corals
Reef Compatibility: Reef safe with appropriate placement
Feeding: Primarily photosynthetic; also obtains nutrients from dissolved and suspended organic matter and very fine plankton
Growth Form: Thick, fleshy, folded and lobed colony resembling overlapping cabbage leaves
Water Parameters: Maintain stable reef aquarium temperature and salinity. Leather corals generally tolerate a somewhat broader range of nutrient conditions than many stony corals, but stable nitrate and phosphate levels are preferred.
Special Considerations: Provide enough variable flow to keep debris from settling between folds and to help remove the waxy surface film periodically shed by leather corals. Temporary polyp retraction during shedding can be normal. Activated carbon and regular water changes can be beneficial in mixed coral aquariums because leather corals can release organic compounds into the water. Allow adequate room for future colony expansion.