Is this crab a good one?

cbitsiaras · 06/16/2013, 12:14 PM

Hello everyone,

I saw this crab hiding in one of my stony corals. Is i took her out of the tank as i am not sure if it safe or not. Do you have any idea?

Thanks for the help.

Best regards,

Dino

Sk8r · 06/16/2013, 12:19 PM

She'd definitely be safe in your sump, and live a long and useful life.
Look up 'mithrax' crab and see if that is close. Mithrax species are milder than most.

cbitsiaras · 06/16/2013, 12:21 PM

Quote:

Originally Posted by Sk8r

She'd definitely be safe in your sump, and live a long and useful life.
Look up 'mithrax' crab and see if that is close. Mithrax species are milder than most.

Thanks Sk8r,

If it is safe then why not in the display tank and only in the sump? (i am still in the learning process and thank for replying).

Best regards,

Dino

monkeypie102 · 06/16/2013, 01:06 PM

Kinda does look like a ruby emerald crab (the mithrix) I've got the green version hanging out in my 26 totally docile! And takes out algae like a champ!!!

kismetsh · 06/16/2013, 01:14 PM

Looks like it could be a commensal crab, if so it is perfectly fine in your display. http://www.liveaquaria.com/product/p...14&pcatid=2914

Sk8r · 06/16/2013, 01:16 PM

Safe in your sump: there's theoretically nothing down there that you paid 30.00 for that it might eat.

The food chain in your display tank should involve only algae.

dixiedog · 06/16/2013, 01:24 PM

Quote:

Originally Posted by kismetsh

Looks like it could be a commensal crab, if so it is perfectly fine in your display. http://www.liveaquaria.com/product/p...14&pcatid=2914

That was the first thing I thought also: an Acro crab. Especially because it was found in a stony coral.

cbitsiaras · 06/16/2013, 01:33 PM

Thanks everyone for your replying. The little one is back in the display tank and found a another acropora to hide in

Warm regards from Copenhagen

Dino

dixiedog · 06/16/2013, 04:58 PM

Excellent! I'm a little jealous of your hitchhiker actually. I've looked at them at Liveaquaria but never made the purchase.

trae · 06/16/2013, 05:08 PM

Good thing I read all the reply before I posted. I was about to say the same about this helpful little guy. Great find!

dzhuo · 06/16/2013, 10:33 PM

This is a Tetralia cavimana. One of most desirable crab you will be able find for the acro. This particular species is among the most aggressive in defending the host colony.

RyanSweatt2004 · 06/17/2013, 07:50 AM

Acropora crab

cbitsiaras · 06/17/2013, 01:36 PM

Quote:

Originally Posted by dixiedog

Excellent! I'm a little jealous of your hitchhiker actually. I've looked at them at Liveaquaria but never made the purchase.

If you were in Copenhagen i would have gladly offered as a present

cbitsiaras · 06/17/2013, 01:37 PM

Quote:

Originally Posted by dzhuo

This is a Tetralia cavimana. One of most desirable crab you will be able find for the acro. This particular species is among the most aggressive in defending the host colony.

Thanks alot for the feedback / he crawled right away into another acro. he is very very sweet

06/16/2013, 12:14 PM	#1
cbitsiaras Registered Member Join Date: Aug 2012 Location: Copenhagen, Denmark Posts: 374	Is this crab a good one? Hello everyone, I saw this crab hiding in one of my stony corals. Is i took her out of the tank as i am not sure if it safe or not. Do you have any idea? Thanks for the help. Best regards, Dino __________________ My 757L aquarium: http://reefcentral.com/forums/showthread.php?t=2211539 Current Tank Info: Mixed reef tank

06/16/2013, 12:19 PM	#2
Sk8r RC Mod Join Date: Feb 2006 Location: Spokane WA Posts: 34,628 Blog Entries: 55	She'd definitely be safe in your sump, and live a long and useful life. Look up 'mithrax' crab and see if that is close. Mithrax species are milder than most. __________________ Sk8r Salinity 1.024-6; alkalinity 8.3-9.3 on KH scale; calcium 420; magnesium 1300, temp 78-80, nitrate .2. Ammonia 0. No filters: lps tank. Alk and cal won't rise if mg is low. Current Tank Info: 105g AquaVim wedge, yellow tang, sailfin blenny,royal gramma, ocellaris clown pair, yellow watchman, 100 microceriths, 25 tiny hermits, a 4" conch, 1" nassarius, recovering from 2 year hiatus with daily water change of 10%.

06/16/2013, 01:14 PM	#5
kismetsh Registered Member Join Date: Dec 2006 Location: NC Posts: 169	Looks like it could be a commensal crab, if so it is perfectly fine in your display. http://www.liveaquaria.com/product/p...14&pcatid=2914 __________________ KC Current Tank Info: 29g, attached 20g display refugium/macro tank

06/16/2013, 01:16 PM	#6
Sk8r RC Mod Join Date: Feb 2006 Location: Spokane WA Posts: 34,628 Blog Entries: 55	Safe in your sump: there's theoretically nothing down there that you paid 30.00 for that it might eat. The food chain in your display tank should involve only algae. __________________ Sk8r Salinity 1.024-6; alkalinity 8.3-9.3 on KH scale; calcium 420; magnesium 1300, temp 78-80, nitrate .2. Ammonia 0. No filters: lps tank. Alk and cal won't rise if mg is low. Current Tank Info: 105g AquaVim wedge, yellow tang, sailfin blenny,royal gramma, ocellaris clown pair, yellow watchman, 100 microceriths, 25 tiny hermits, a 4" conch, 1" nassarius, recovering from 2 year hiatus with daily water change of 10%.

06/16/2013, 01:33 PM	#8
cbitsiaras Registered Member Join Date: Aug 2012 Location: Copenhagen, Denmark Posts: 374	Thanks everyone for your replying. The little one is back in the display tank and found a another acropora to hide in Warm regards from Copenhagen Dino __________________ My 757L aquarium: http://reefcentral.com/forums/showthread.php?t=2211539 Current Tank Info: Mixed reef tank

06/16/2013, 01:06 PM	#4
monkeypie102 Registered Member Join Date: Jan 2013 Posts: 188	Kinda does look like a ruby emerald crab (the mithrix) I've got the green version hanging out in my 26 totally docile! And takes out algae like a champ!!!

06/16/2013, 04:58 PM	#9
dixiedog Registered Member Join Date: Jan 2009 Location: Gainesville, Florida Posts: 1,626	Excellent! I'm a little jealous of your hitchhiker actually. I've looked at them at Liveaquaria but never made the purchase.

06/16/2013, 05:08 PM	#10
trae DR Octopod Join Date: Feb 2007 Location: Honolulu Posts: 380	Good thing I read all the reply before I posted. I was about to say the same about this helpful little guy. Great find! __________________ For a fish today, i will gladly pay you Tuesday. What tha Frag! Current Tank Info: 240gal mixed reef build in the works

06/16/2013, 10:33 PM	#11
dzhuo Registered Member Join Date: Oct 2002 Posts: 4,338	This is a Tetralia cavimana. One of most desirable crab you will be able find for the acro. This particular species is among the most aggressive in defending the host colony. __________________ One of the most frustrating thing about this hobby? The blind leading the blind.

06/17/2013, 07:50 AM	#12
RyanSweatt2004 Registered Member Join Date: Nov 2006 Location: maine Posts: 590	Acropora crab