Crab ID Please - Pic

[gnashty]

I just got home from work and noticed my sweet tabling acro is almost all bleached out. I gave it a lugols dip (probably wont help) and noticed these 2 crabs all up in it. I doubt they had much to do with the bleaching but Im not putting them back in unless they are safe.

Are these bad crabs? Here is a pic or two. A quick web seach suggested the small one might be an acro crab and the big one maybe a porcelain or decorator? Im not quite sure

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[mockery]

Can't be positive but the first one looks bad but the second looks like an acro crab.

 

[dine]

i also dont think the first one is reef safe. last speaker gave us the general guidline that hairy crabs=bad

 

[sewer urchin]

Difficult to tell.
I thought the first might be a gorilla crab, do an image search to be sure. Couldn't tell you about the second.
Try serving it up with a nice butter sauce. mmmm-mm

 

[dine]

Sewer Urchin;737409 wrote: Difficult to tell.
I thought the first might be a gorilla crab, do an image search to be sure. Couldn't tell you about the second.
Try serving it up with a nice butter sauce. mmmm-mm

gorilla was my first thought but google changed my mind...

 

[falos]

Hard to tell in the pics look in to these Scleractinians, Alcyonaceans, Pennatulaceans Xanthid
is the hole shell fuzzy or just the arms and take it to bright light place a white peace of paper around the botom look at color and markings

Edit:

 

[brisco15]

First is bad I believe as well that same kind as far as I can tell from pic will pick at polyps. Had a few sneak in once on some live rock.

 

[ripped tide]

I'll take the crabs if you don't want them. My sump needs character

Edit: And if the second is a bandit crab, I'll even pay.

 

[patrick]

One looks like a generic xanthid crab to me and the other one does resemble an acro crab.

 

[maelstrom79]

What about emerald crabs? They have hairy legs

 

[patrick]

Maelstrom79;737452 wrote: What about emerald crabs? They have hairy legs

The mithrax crabs just look different and have a different shaped carapace.......at least to me. To me that larger crab doesn't even look close to an emerald.

 

[ripped tide]

Not an emerald.

 

[rolo65]

The first one is a bad one....the yellow one is ok....you can actually put him back on the acro....I had that same crap(1st) on a few of my colonies.....they eat the polyps and dig a cave in the main stalk of the acro and start to kill it...

 

[mvm]

rolo65;737469 wrote: The first one is a bad one....the yellow one is ok....you can actually put him back on the acro....I had that same crap(1st) on a few of my colonies.....they eat the polyps and dig a cave in the main stalk of the acro and start to kill it...

Agreed. But I will insert "crab" instead of "crap." Haha.

 

[jead85]

Definitly looks like the gorilla crab I had. From the picture anyway Has lots of spots and red eyes right? Supposidly eats coral. I banished mine to the sump.

 

[rolo65]

MvM;737476 wrote: Agreed. But I will insert "crab" instead of "crap." Haha.

Crap!.....I should proof read!....lol......but yes I meant crab.....

 

[gnashty]

I put the little one back in the tank, the first one got banished.

In the reefcleaners desription of the 1st crab under Decorator Crab said they will go lifeless when scared and that is exactly what it did. I thought it was dead. Said it was a known zoa muncher