How did this go undetected...

[Fiziksgeek]

Just came back from 2 weeks in Hawaii and found this guy cruising the tank....friend or foe?

 

[EeyoreIsMySpiritAnimal]

Emerald crab?

 

[sbreefco]

Stone Crab, foe

 

[MoshJosh]

Asian shore crab maybe??? Sorry, I know nothing about this crab or how likely it would be to end up in an aquarium. . . but that was what my google search results came up with.

 

[randomfishdude]

I'm not shure but I would grab it and QT it in like a cup or something till so one knows.
I've had to take down a 10g becuse I thought a majano was a mini bta that was on my zoa rock.

 

[Fiziksgeek]

Stone crab huh? Like they type you eat in FL? It's is 2-2.5 inches, and moves fast. Hard to believe I could ever catch it with my tongs or a net. Really starting to regret that live rock from TBS.....

 

[EZKLR]

Stone crab huh? Like they type you eat in FL? It's is 2-2.5 inches, and moves fast. Hard to believe I could ever catch it with my tongs or a net. Really starting to regret that live rock from TBS.....

use a red light at night so he won't see you and grab with the tongs

 

[yanetterer]

Stone crab huh? Like they type you eat in FL? It's is 2-2.5 inches, and moves fast. Hard to believe I could ever catch it with my tongs or a net. Really starting to regret that live rock from TBS.....

You could try making a crab trap with the top of a soda bottle cut off and flipped over. There are lots of threads about catching gorilla crabs that should provide examples of the traps. Although if he really is 2.5" you may need a wider mouth like a Gatorade or Vitamin Water bottle.

 

[Fiziksgeek]

You could try making a crab trap with the top of a soda bottle cut off and flipped over. There are lots of threads about catching gorilla crabs that should provide examples of the traps. Although if he really is 2.5" you may need a wider mouth like a Gatorade or Vitamin Water bottle.

This guy would definitely need something larger, but my experience has said I am mostly likely I'll just catch snails!

 

[Kasrift]

Just came back from 2 weeks in Hawaii and found this guy cruising the tank....friend or foe?

Foe sho'. Seriously though, not a friend.

 

[Fiziksgeek]

This is a molt….I suspect I will spend next weekend tearing the tank apart to get this monster out…

 

[HomebroodExotics]

This is a molt….I suspect I will spend next weekend tearing the tank apart to get this monster out…
View attachment 3142814

That’s kind of cool. I’d make a tank for him.

 

[blecki]

I caught a crab that size once by letting him snip my finger and then yanking my hand out.

I do not recommend trying it yourself.

 

[JGT]

Shot glass trap works though I had to use a stemless wine glass for this beast.

 

[Tired]

Oh, yep, stone crab. Honestly might not be an enormous concern; they're opportunists, but they aren't super fast opportunists. I take it you haven't had anything get devoured, since you didn't know about this already?

You can grab em with forceps by just going for it. Commit to the motion and grab. Failing that, a glass leaned against the rock can work well.

 

[dwest]

A piece of shrimp in a tilted glass against the rock he hangs out in will eventually work. I’ve caught many crabs this way. Set it just before lights out. And try for more after you catch him, you might be surprised.

 

[Kasrift]

I caught a crab that size once by letting him snip my finger and then yanking my hand out.

I do not recommend trying it yourself.

 

[Fiziksgeek]

Well, its out. Last weekend we spent an entire day removing all the rock from the tank. Not only for this guy, but I knew we had a couple gorilla crabs still in there.

Dead, sitting on a 3" frag disk.

Though we have pulled out at least 20 through traps, nets, tweezers, etc over the past few months, still had a bunch of gorilla grabs too. I gotta imagine we didn't get them all, but got a lot...

 

[jabberwock]

How many pounds of rock?

 

[Fiziksgeek]

How many pounds of rock?

300!