In every nook and cranny of my rock I have those things. Didn't think they were a big deal, still aren't causing any problems but a whole patch of zoos on my rock has slowly disappeared so I am beginning to wonder. I have tried the pop bottle trap but that didn't work.

I also have a ton of filter feeding crabs that hitch hiked, they are cool little guys.

I swear must have gotten at least 100 hitch hiking crabs in total! An added benefit though is that all night they pick the rock clean of any algae.

When the rock crabs get big enough, they will take out pretty large fish. I have seen it right in front of my eyes, a black rock crab was hiding in the rock, the a huge pincer whipped out and grabbed a sizable fish (cant remember which one right now), about 3" long, and it was dead.

This was at Aquarium Illusions in their large display tank, they had no idea they had a rock crab until they saw the aftermath.

Maybe not all rock crabs get this big or agressive though, but if you can remove them, I would.

kill
 

just use interceptor. get rid of red bugs, get rid of crabs, BUT also get rid of pods, shrimps, hermits.

A have a few other crabs in there that are different looking... they are 'hairy' and have longer legs and pinchers. They are WAY faster than this guy was... hence why I cant catch the others. Maybe I'll try to set a trap... I have lost two shrimp gobies in the past little while.

I still dont think I could feed him to the triggers! *cry*

-Diana

I am going to hold out on the interceptor (I don't have the bugs anymore) and hope one of the crabs snags my clown goby! :twised:

Looks like an Acro eating crab to me.

thats the same kinda crabs I was taking outa my tank for like 3-4 weeks as I kept finding them.Some were really big.Hope you catch them all.Keep looking at night with a flash light gaurenteed you will have more of those suckers.

george

I just spotlight them with a flashlight at night and grab them with a pair of fly fishing forceps.

Most of the time I just squish them and let them drop to the bottom where the bullseye pistol shrimp is just waiting to grab and lay the boots to them before dinner. :)




Not very nice I know, but I still manage to sleep at night most of the time.

Edit:
Typo.