Crabs: To have or have not

[Sea Witch]

What about killing fish? Anybody think their crabs killed a fish?

[asylumdown]

Other than a few poached snails I've never had a problem with hermits. Though I will say that if anything happens to your tank and corals get stressed, blue legged hermit crabs will pick at the decomposing tissue and possibly prevent recovery/hasten demise.

I guess if you've got expensive shelled creatures that you really like and spent a lot of money on, they'd be something to be careful about. I've always looked at my snails as the vacuum cleaners of my tank and nothing more, so needing to replace a couple of nassarius snails every now and then doesn't really stress me out or lead me to think that crabs are bad.

I had several hitchhiker crabs come in on my rock, the big black ones with the hairy legs were supposed to be all evil or something. I never had a problem with them they were actually some of my favourite tank denizens.