Shrimp, Snails, and Crabs
Flat Spider Crab
Percnon gibbesi
Photo: tato grasso · CC BY-SA 3.0 · Wikimedia Commons
Key facts
- Temperature18–27 °C
- pH8.1–8.4
- Adult size3 cm
- Difficulty★☆☆☆☆
- TemperamentPeaceful
- WaterMarine
- Reef safeYes
Full profile
- Family
- Percnidae
- Origin
- Atlantic and eastern Pacific (invasive in the Mediterranean)
- Size
- 3 cm shell length
- Temperature
- 18 – 27°C
- pH
- 8.1 – 8.4
- Salinity
- 1.023 – 1.028
- Difficulty
- ★☆☆☆☆
- Water type
- marine
- Behavior
- Pacific
- Diet
- herbivore (algae)
- Reproduction
- planktonic larvae
- Reef Safe
- ✅ Yes
Notes: Long-legged flat crab with golden stripes. Eats algae. Invasive species in the Spanish Mediterranean: never release it.
