Catching Crabs

I've got some hairy looking crab guy chomping on my Xenia - I've seen him once or twice and know roughly where he lives. Every morning I look at the tank and more of my Xenia is gone. I'm down to only about 10% it's size. I think he has now starting chomping on my Christmas Tree rock as well. I'm starting to get odd dead spots on it.  Needless to say I need to catch this guy ASAP!

So any advice? Use the glass and shrimp trick? Use a trap? Does anyone have a trap to borrow?

This is a picture of the guy from another site:

I'm going to pull the rock and try to get him into the sump when I get home. I think I may have two though (or I just looked at the tank so long looking for him I started seeing double) - so I might try the bottle trick as well.

looks like you learned catching crabs is alot easier than getting rid of them 

My bet is that he might come out of the rock if its out of the water for a bit

sanddune600 wrote: or spray him with some cold or hot water he wont like it and should try and leave

This worked. I had the rock out most of yesterday but didn't get the chance to try this till this morning. The moment the hot water hit the rock he was out of it. Thanks!

After much mourning and weeping after the crab in this post had finished off my Xenia I had written it off.

BUT

Sat. morning I woke up and looked into my tank - and lo' I did spy some tiny stalks where the crab had feasted. As of today they are now a quarter inch high! SO TAKE THAT CRAB I WIN!

Probably not exciting to anyone else  - but this was an epic two week battle with heavy casualties and my men have risen from the grave!  Zombie Xenia!

GentlemanBean wrote: what did you end up doing with the crab?

Causality of war.

When I stuck the rock in the tub to run water over it I was holding it above the drain. He jumped off the rock and well went down the drain. Which is too bad because I was going to stick the little bugger in my refuge.