Livestock | Marine | Marine Inverts and Snails | Gorgonia

Keeping Gorgonians in Marine Aquariums

Gorgonians, also known as sea fans or sea whips, are striking, branching corals that bring dynamic flow, vertical structure, and texture to marine aquariums. Their graceful, often tree-like forms and vibrant colors make them a favorite among reef aquarists looking for something beyond the typical stony coral. With proper care, gorgonians can thrive and become a stunning centerpiece in both soft and mixed reef tanks.

General Care Tips:
Gorgonians require stable water parameters, moderate to strong water flow, and careful placement to prevent detritus buildup. They do best in tanks with temperatures between 72–81°F and a pH of 8.1–8.4. Placement should ensure their branches are gently swaying in the current, allowing efficient feeding and self-cleaning.

Feeding:

• Photosynthetic gorgonians (e.g., Pterogorgia spp., Muriceopsis spp.): Contain symbiotic zooxanthellae and require moderate to strong reef lighting (T5, LED, or halide). These species benefit from occasional feedings of phytoplankton or marine snow to support growth and coloration.

• Non-photosynthetic gorgonians (e.g., Swiftia spp., Diodogorgia spp.): Require no light but must be fed regularly with small particle foods such as phytoplankton, rotifers, and microplankton multiple times per week. These are best kept by experienced aquarists in systems with dedicated nutrient management and regular feeding routines.

Compatibility and Behavior:
Gorgonians are peaceful and reef safe. They coexist well with most corals, invertebrates, and reef-safe fish. Their delicate tissue and polyps can, however, be irritated by aggressive corals or nipping fish such as some angelfish or butterflyfish. Avoid placing them in areas where detritus may accumulate or where their branches are constantly battered by direct flow.

Popular Species:

• Pterogorgia anceps (Purple Ribbon Gorgonian): Hardy and photosynthetic; ideal for beginners.

Special Considerations:
Gorgonians can be susceptible to algae or cyanobacteria overgrowth on their branches if placed in low-flow or high-nutrient areas. Regular flow maintenance and appropriate placement will help prevent this. Handle gently and only when necessary, as their tissues can be easily damaged.

Summary:
Gorgonians add motion, form, and natural elegance to marine aquariums. With their diverse care needs—ranging from beginner-friendly, photosynthetic varieties to specialized filter feeders—they offer options for hobbyists at every experience level. When provided with stable conditions, proper flow, and suitable nutrition, gorgonians thrive and become a living sculpture in your reef display.