Sea Red Star Fish

Species Profile

• Scientific Name: Echinaster luzonicus
• Common Name: Red Luzon Sea Star
• Adult Size: Approximately 15–20 cm (6–8 inches) arm span
• Life Expectancy: 5–10 years in captivity with proper care
• Habitat: Shallow tropical reefs and rocky substrates of the Indo-Pacific region, especially around the Philippines and nearby areas

Tank Requirements

• Minimum Tank Size: 30 gallons (114 liters) or larger to accommodate movement and substrate
• Ideal Temperature: 24°C – 28°C (75°F – 82°F)
• pH Range: 8.1 – 8.4
• Water Hardness: 8 – 12 dKH
• Temperament: Peaceful and slow-moving; compatible with most reef inhabitants

Diet & Nutrition

• Omnivorous: Yes (primarily scavenger/detritivore)
• Diet: Feeds on detritus, small invertebrates, biofilm, and organic matter. Supplemental feeding with finely crushed meaty foods or marine pellets may be needed in captive settings.

Appearance

• Coloration: Bright reddish-orange to deep red, often with rough textured surface
• Size & Shape: Five slender arms tapering from a small central disc; surface covered with small spines giving it a rough texture

Distinctive Features

• Vivid red coloration makes it visually striking in marine tanks
• Slow-moving scavenger that helps clean detritus and small particles from the tank
• Rough-textured surface differentiates it from smoother sea stars
• Sensitive to water quality; requires stable, clean marine conditions