All crabs bad?

[MattP725]

I got a tiny little whitish crab with my lr... Should I try to remove him? He isn't big enough to get any fish... barely the size of a dime. He also is a night dweller.

 

[Bearfan]

If they have small filter arms that they use when they feed they are porcelain crabs and should be fine.

 

[EL Diablo]

I have 3 porcelain's in my tank. cool critters.
I also have a few other unknown Crabs in thier too!

If you dont plan to add corals I'd keep the crab, adds to the diversity of the tank.

I plan on adding corals in the future so my crabs will eventually get evicted but for now they get to stay.

 

[ccCapt]

I have a little acro crab that lives inside the branches of my acropora. It doesn't bother the coral at all and even tries to protect the coral by extending it's little claws and waving them around whenever a fish swims near it.
I also have an emerald crab and it doesn't bother any of my corals either, so I guess it depends of what kind of crabs you have in there.