Green Brittle Starfish - Ophiocoma spp.
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The Green Brittle Starfish (Ophiocoma spp.) is an eye-catching and beneficial scavenger for reef aquariums. Known for its vibrant green coloration and agile arms, this starfish helps maintain a clean tank by consuming leftover food and detritus while adding fascinating movement to the aquarium.
Common Name: Green Brittle Starfish
Scientific Name: Ophiocoma spp.
Family: Ophiocomidae
Size: Up to 10 inches (25 cm) arm span
Temperament: Peaceful
Difficulty: Easy
Reef Safe: Yes
Native Region: Found throughout the Indo-Pacific, typically hiding within rock crevices during the day and emerging at night to scavenge along sandy bottoms and reef rubble.
Tank Size: Minimum of 30 gallons
Temperature: 72–78°F (22–26°C)
pH: 8.0–8.4
Salinity: 1.024–1.026
Substrate: Live rock with caves and crevices for daytime hiding; open areas for nighttime foraging.
• Scavenger Role: Actively consumes leftover food, detritus, and organic waste, helping maintain water quality.
• Behavior: Mostly nocturnal; arms extend from rockwork or substrate at night to forage.
• Feeding: Supplement with small meaty foods if the tank is very clean.
• Tankmates: Safe with corals and most invertebrates; avoid predatory fish that may attack its arms.