bad crab?

[bill37]

I just got a new Acro, it had a couple crabs on it. How do I know if they are good or bad?

 

[JohnF]

Try to post a picture of it or at least a description.
People here can and will help out if you give enough information.

 

[bill37]

they have big claws compared to their size and are a light pink / opaqueish.

 

[LeslieH]

Probably Trapezia or Tetralia and therefore a beneficial commensal which helps groom & protect the coral. Colonies with these crabs are healthier & grow faster than corals without them.

 

[bill37]

pic

pic

here is a pic.

 

[bill37]

Thanks Leslie that is it.

 

[Frick-n-Frags]

the little bandit faced pale crabs are the good ones.

The fuzzy black ones on acros are very bad

 

[lifesworksataol]

brown crab?

 

[bill37]

Leslie nailed it on the head. Trapezia or Tetralia

 

[Paintbug]

there common name is Coral Crab. super cool little creatures.