Arrow Crab - Stenorhynchus seticornis
- In stock, ready to ship
- Backordered, shipping soon
The Arrow Crab (Stenorhynchus seticornis) is a striking and agile marine invertebrate, recognized for its long, pointed legs and triangular body. This peaceful crab is an excellent addition to reef aquariums, helping control detritus and small pests while adding unique movement and interest to the tank.
Common Name: Arrow Crab
Scientific Name: Stenorhynchus seticornis
Family: Inachidae
Size: Up to 6 inches (15 cm) leg span
Temperament: Peaceful
Difficulty: Easy
Reef Safe: Yes
Native Region: Found throughout the Caribbean and Western Atlantic, commonly inhabiting coral reefs, rocky substrates, and crevices.
Tank Size: Minimum of 20 gallons
Temperature: 74–80°F (23–27°C)
pH: 8.0–8.4
Salinity: 1.023–1.025
Substrate: Live rock with plenty of crevices and hiding spots.
• Algae & Pest Control: Actively grazes on detritus, small pests, and uneaten food.
• Behavior: Peaceful; may rearrange small items in the tank while exploring.
• Diet: Omnivorous—accepts small meaty foods, detritus, and algae.
• Tankmates: Compatible with most reef fish and invertebrates; avoid aggressive predators that may harm the crab.