Turbinaria Seaweed

Turbinaria · also called Ornate Turbanweed, Turbinaria ornata

Turbinaria is a genus of tough brown macroalgae, not to be confused with the stony coral of the same name. T. ornata carries toothed, saucer-like bladders along a central axis and grows very slowly. It is very rarely kept, is best left to seasoned keepers, and one reference advises against it in reef tanks.

Educational only. Some KinStation entries are reviewed by licensed veterinarians, but none can replace an in-person exam. Always consult a licensed veterinarian or board-certified specialist for diagnosis, treatment, or any decision affecting your pet's health.

Quick facts

Category	Marine & Algae
Family	Sargassaceae
Native origin	Central and western Pacific and the Indian Ocean
Care difficulty	Advanced
Light	Bright indirect
Pet toxicity	Toxicity unknown

Light

Needs strong reef lighting, since it is challenging to grow and calls for a brightly lit tank. Position it high under good PAR. Brown algae are among the hardest groups to culture in aquariums, so make sure the lighting is steady before it goes in, and bring a new piece up slowly.

Water

Standard reef parameters: 23-27 C (74-80 F), salinity ~1.025 SG, pH 8.1-8.4. Wild plants favor nutrient-rich reef flats and tide pools, and care is much like Sargassum. One hobby source suggests watching iodine and iron, though no target figures exist, so change things slowly.

Soil & potting

Grows on hard reef surfaces, not in sand. Tie or wedge the base into rockwork so the current can push the plant upright. A plant laid on the sand or left in still water will slump, so anchor it securely before you judge its health. Keep the tie clear of the bladders.

Environment — humidity, temperature, placement

Turbulent water is essential, because a plant without enough current simply slumps and withers. Site it near the surface in moderate to high circulation, at standard reef temperature of 23-27 C (74-80 F). A strong-flow macroalgae tank suits it better than a calm refugium.

Propagation

Growth is very slow, and keepers have little record of propagating it. Treat a plant as a long-term specimen and leave the main axis intact. Wild T. ornata has become invasive on some South Pacific reefs, so never release a plant or tank water into the wild.

Toxicity detail

No toxicity data for tank animals was found, so the rating stays unknown. It is both mechanically and chemically defended from herbivores, and other algae shelter among its blades. In one reef bioassay it had no effect on corals, though field effects vary. Naso tangs may graze it.

Varieties & cultivars

Natural forms are the wild species; cultivars are selectively-bred colour or variegation forms of the same plant.

Natural forms1

Ornate Turbanweed

Turbinaria ornata. A brown alga with toothed, saucer-like bladders set along a central axis. It grows very slowly and is very rarely kept.

Best left to seasoned keepers. Care is much like Sargassum, and it wants turbulent water.