Jump to content


Photo

Catch the bad hitchhiker crab!


  • Please log in to reply
4 replies to this topic

#1
Celine

Celine

    Nano Reefer

  • Members
  • 6 posts
  • Joined 07 Apr 2012

I notice a bad hitchhiker crab in my tank. I don't think it is a reef safe crab. It is around 1.5 cm big. It moved do fast and hides inside the rock.

Any suggestion on how to catch it, pls?

#2
SyCo_VeNoM

SyCo_VeNoM

    Nano Reefer

  • Members
  • 67 posts
  • Joined 03 Apr 2012
is it one of these? http://www.chucksadd...hitchcrabs.html
when I added live rock I got 3 of them(1 of each of the top 3 ones they show pics of at that)... Easiest way to catch them I found was chase them into the liverock, and pick that piece out, and look carefully for them with a flash light, and poke em with a with a pencil they will scoot out into the bucket fast.
Some people I read also recommend dumping liverock in freshwater for a few seconds cause the hitch hikers generally will jump off.

#3
Whys

Whys

    Between the Lines

  • Members
  • 1,195 posts
  • Joined 17 Feb 2011
I don't suggest fresh, but hyposaline isn't a bad idea. You only need to shift the specific-gravity a few points under 1.022, as long as the shift is rapid, a crustacean should react and run out of the rock. Use fresh and all sorts of little stuff you don't see living on the live rock will simply die upon contact.

Edited by Whys, 11 April 2012 - 03:29 PM.

©2013 Ryan F. Mercer -All Rights Reserved.
         === TREASURE HUNT ===


#4
Celine

Celine

    Nano Reefer

  • Members
  • 6 posts
  • Joined 07 Apr 2012
Sorry, I failed to mention that I cannot move the rocks. All my coral attached to it. The crab is hiding in the hole inside the rock. I tried to poke it out but it moves to other hole, very annoying.

#5
halcyonism

halcyonism

    Nano Reefer

  • Members
  • 273 posts
  • Joined 12 Oct 2011
  • Yakima, WA
Google "water bottle trap." I used the same method to catch a rogue peppermint shrimp, works like a charm.