[krsult]

Has anyone ever had a problem with arrow crabs. This morning when I got up for my paper route I pulled out my trusty flashlight to look at the inhabitants of my 14 gallon nano cube and to my dismay there is my arrow crab with a Hermit crab in his claws. The hermit is out of its shell. Murder!!!! And there were witnesses!! He is in there to murder the Bristle Worms not the Hermit crabs.

[combs44]

I got my arrow crab before I found out I had a mantis in my tank. Needless to say, the arrow crab wasn't doing any murdering.

I didn't notice any problems before he met his demise though.

[tomc1980]

Ive always been told to be careful with arrow crabs as they are prone to killing other inverts in the tank but im not 100% on it. But with anything in this hobby ask teh same question to 20 different people youll get 20 different answers.

[combs44]

A blurb from Drs. Foster and Smith:
It is a hardy, long-lived invertebrate, that can be housed in the reef aquarium. This crab has been known to attack crustaceans such as Banded Coral Shrimp, and may even attack small slow moving fish. All crabs are opportunistic feeders and if insufficient food is present they may pick at mushrooms or polyps searching for food. Breeding Arrow Crabs in the aquarium is not generally successful. Larvae are free-swimming and hatch in about two weeks. It will accept almost all meaty, flake and tablet foods.