Finding and catching a killer

Discussion in 'Urgent Help Needed' started by Zuna, 20 Nov 2009.

  1. Zuna

    Zuna

    Joined:
    17 Jun 2009
    Posts:
    810
    Likes Received:
    2
    Location:
    Regents Park (JHB South)
    Hey Guys

    ive know for the last two months ive lost 2 cleaner shrimp and 3 gobies.
    im not sure if i have a crab thats kill my fish or somthing else.
    it seems to be something that hides in the substrate because i found left overs of my gobies under the rocks.

    how would i go about finding and catching the Perpetrator?
    ive move and checked all the rocks in the DT

    please Help
     
  2. AdS Guest




    to hide all adverts.
  3. viper357

    viper357 Admin MASA Contributor

    Joined:
    4 May 2007
    Posts:
    27,991
    Likes Received:
    782
    You could have a mantis shrimp, they normally hide inside holes in the rock.
     
  4. noproblem

    noproblem

    Joined:
    3 Jan 2009
    Posts:
    180
    Likes Received:
    1
    Location:
    Cape Town
    I caught my " bad crab " as the kids called by taking each piece of rock out and using a turkey baster with a metal end, poking and washing out each hole with ro water. It appeared on the fifth rock and is now deceased... I tried various other traps and things and this was the last resort.
     
  5. jacquesb

    jacquesb Retired Moderator

    Joined:
    29 May 2007
    Posts:
    17,868
    Likes Received:
    69
    Location:
    Cape Town
    The way to catch crabs, is to put a tall glass (tall enough for the crab not to be able to get out) - put some meaty foods in the bottom of the glass.... leave the glass in the tank for 2 days. After 2 days, if you don't have the crab yet - remove the uneaten food, and replace with new food.
    This process might need to be repeated for about 2 weeks.... perhaps you lucky and you catch the crab (if it is a crab) within the 1st few days...

    In the case of it being a mantis shrimp - you might need to remove the rock, and let the rock sit "dry" just above some tank water (in a container) - this also might be needed to be done for a few days....
    The mantis shrimp should come out of the rock on it's own, as the rock starts to dry out....
     
  6. magman

    magman

    Joined:
    31 Jul 2009
    Posts:
    2,144
    Likes Received:
    21
    Location:
    Richards Bay
    or a pistol, try checking at night, you will see them working under the rocks moving the substrate out. I have taken 6 out my tank. use a coke bottle trap, or if he is under one piece of rock, surround it with nets in the substrate. horrible things though. Is your tank making cracking noises at night. Is any of your rock local?

    I thought they were supposed to be friends with gobies though.
     
  7. magman

    magman

    Joined:
    31 Jul 2009
    Posts:
    2,144
    Likes Received:
    21
    Location:
    Richards Bay
    best bet is to look for the burrows under the rock when you get back, one can burrow under half the tank.
     
  8. robvdv

    robvdv

    Joined:
    22 Jun 2007
    Posts:
    798
    Likes Received:
    16
    Location:
    Noordhoek, Cape Town
    I've also heard of putting the rock in with an octpus for a few days and soaking the rock in carbonated water. Jacques' trick sounds like a clever, low effort solution.
     
  9. Zuna

    Zuna Thread Starter

    Joined:
    17 Jun 2009
    Posts:
    810
    Likes Received:
    2
    Location:
    Regents Park (JHB South)
    do i put the glass in top side up?
     
  10. jacquesb

    jacquesb Retired Moderator

    Joined:
    29 May 2007
    Posts:
    17,868
    Likes Received:
    69
    Location:
    Cape Town
    Hi Zuna - you put the glass in the tank, with the open side lying slightly against the rock where you think the critter might be..... the top open end of the glass must be nearly in-line with the rock angle.
     
  11. Zuna

    Zuna Thread Starter

    Joined:
    17 Jun 2009
    Posts:
    810
    Likes Received:
    2
    Location:
    Regents Park (JHB South)
    as far a i know it suppose to be Kenyan Rock
     
  12. Zuna

    Zuna Thread Starter

    Joined:
    17 Jun 2009
    Posts:
    810
    Likes Received:
    2
    Location:
    Regents Park (JHB South)
    awesome ill give it a try Thanks
     
  13. lIghty

    lIghty

    Joined:
    3 Nov 2007
    Posts:
    5,053
    Likes Received:
    52
    Location:
    Westville, Durban
    Glass methods works well, caught the crab the 1st night I put it in!
     
  14. Slummies

    Slummies

    Joined:
    3 Sep 2009
    Posts:
    1,316
    Likes Received:
    4
    i need to try this tonight. i found a dead hermit this morning and my big star fish guts been eaten out.. theres a ghost in the darkness
     
Recent Posts

Loading...
Similar Threads - Finding catching killer Forum Date
Just keep Swimming (Finding Nemo) JungleAquatics.NET BLOG 30 Jun 2016
Watch "MAT from A to Z / Dory's way to home aquaria (Finding Dory)" on YouTube Marine Fish Discussions 21 Jun 2016
Just keep Swimming (Finding Nemo) JungleAquatics.NET BLOG 30 Aug 2015
"Finding Nemo" Sequel Diving, Collecting and Environmental Discussions 18 Aug 2013
Finding nemo Pico Tanks 11 Apr 2012
Finding Nemo just got easier General Discussions and Advice 2 Jun 2011
Any help on finding a BOYU HX- 800 with stand General Discussions and Advice 16 May 2011