Crabs

Crabs can be valuable cleanup crew members, but some species may become problematic. Choose carefully for your reef tank.

Care Tips for Crabs

  • Emerald crabs eat bubble algae
  • Arrow crabs eat bristle worms and pests
  • Sally Lightfoot crabs are excellent algae eaters
  • Some crabs may attack fish or coral when hungry

Browse Crabs (12 species)

Download the ReefBay App
[email protected]
|
©ReefBay 2026

Join The Community

Create an account to contribute to the community

Or continue with
Sign in with Apple
Or continue with
Sign in with Apple

Prefer our mobile app?

QR Code

Scan to download the app

Download ReefBay

Scan the QR code with your phone to download the app

Download ReefBay QR Code

Available on iOS and Android