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Gracilaria parvispora, known as ogo or limu ogo, is a large red seaweed (marine alga) endemic to Hawaii, grown for food and in aquaculture and the aquarium trade. It is fast growing in clean, nutrient-rich, moving seawater; this entry describes the species, not a houseplant.
Gracilaria parvispora, known by the common names ogo, long ogo, red ogo, and (in Hawaiian) limu ogo, is a large species of marine red alga in the genus Gracilaria. Endemic to Hawaii, it is highly sought after as an edible seaweed and is popular in mariculture and the marine aquarium trade.
Gracilaria parvispora inhabits reef flats and areas with sand-coated rocky substrate. It is tolerant of a wide range of environmental conditions, preferring nutrient rich water, moderate to high lighting and current, dKH between 8 and 12, pH between 8.1 and 8.4, water salinity between 1.010 and 1.025 SG, water temperature between 22 and 28 °C (71.6 and 82.4 °F), calcium between 390 and 440 ppm, magnesium between 1,200 and 1,400 ppm, phosphate between 0.01 and 0.1 ppm, and nitrate between 1 and 20 ppm.
In 2003, researchers at the University of Hawaiʻi analyzed the nutritional composition of 22 edible Hawaiian seaweed species, including G. parvispora. Fresh G. parvispora was found to be composed of 90.4 ± 0.1% water. Composition and caloric content of dried, powdered G. parvispora was found to be 48.1 ± 0.4% ash, 7.6 ± 0.4% total protein, 22.9 ± 0.9% soluble carbohydrate, 2.8 ± 0.3% crude lipid, and 1,358 ± 66.4 cal/g (38,498.7 ± 1,882.4 cal/oz) for powder. The riboflavin content of dried, powdered G. parvispora was found to be 0.006 mg/g (0.0001 oz/lb). The essential mineral element content of dried, powdered G. parvispora was found to be 1.48% nitrogen, 0.15% phosphorus, 16.00% potassium, 0.49% magnesium, 0.38% calcium, 3.99% sulfur, 242 μg/g (0.0039 oz/lb) boron, 8 μg/g (0.0001 oz/lb) zinc, 48 μg/g (0.0008 oz/lb) manganese, 198 μg/g (0.0032 oz/lb) iron, and 3 μg/g (5×10−5 oz/lb) copper. Like other aquacultured Gracilaria species, G. parvispora did not have an unusually high nutritional value.
Text excerpted from the Wikipedia article Gracilaria parvispora by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
