Snapping noise coming from live rock

Discussion in 'General Discussions and Advice' started by *Philip*, 9 Apr 2011.

  1. *Philip*

    *Philip*

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    Hi guys. I have something in one of my rocks making a snapping noise, mostly at night and it's driving me nuts. :cursing: I took the suspect rock and put it in a tank in garage. The noise is out my tank now, so its definitely in that rock. I looked it over and can see a crab thingy deep in a hole.

    Any ideas on how to get it out without killing it or hurting the polyps?
     
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  3. Tobes

    Tobes Retired Moderator

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    Sounds like a pistol shrimp. If you can suspend the rock just above the water surface he will climb out back to the water. A piece of meat in a glass won't work like when trying to catch a crab as shrimps can swim out.
     
  4. Evo R

    Evo R

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    Sounds like a mantis.Good thing you got it out as they are notorious LS killers.

    Try using a rope/fish line and suspend the rock in the air of the ground and place a piece of food at the bottom and wait a day or so for the little bugger too come out.by raising the rock of the ground he cant get back inside his hole.

    Hope this helps.
     
  5. Evo R

    Evo R

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    lol double post haha
     
  6. Tobes

    Tobes Retired Moderator

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    No double post, you said it's a mantis, I think it's a pistol shrimp :p
     
  7. *Philip*

    *Philip* Thread Starter

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    Thanx for the ideas guys. Will try suspending it just above the ground and leave food. If its a crab, it would not be able to get back, but if its a shrimp, it can swim back. Don't want to leave it out of the water too long because of the polyps. I tried leaving it out the water and leaving it in RO water.
     
  8. Tremayn

    Tremayn

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    Its a pistol shrimp. They make that sound. The crab is probably a hitch hiker that you only spotted now. So get rid of that guy one time :) .. You can also try taking the rock out of the water and flushing the hole with RO water. Use a syringe. That worked like a charm with my mantis. It can flying out.. Good luck mate
     
  9. *Philip*

    *Philip* Thread Starter

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    OK, so I suspended the rock as suggested and out came a little crab.
    Can anyone tell me what this little bugger is and if he is safe or not. If not, I will leave him in garage tank.

    [​IMG]
     
    Last edited: 10 Apr 2011
  10. Evo R

    Evo R

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    I dont know what crab that is........but he is not the one making the clicking sound so you must have another hitch hicker in there too.
     
  11. Tobes

    Tobes Retired Moderator

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    Yip, I also think so
     
  12. Tremayn

    Tremayn

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    you can just sump him.. If you don't want him Im sure someone near you with a predator tank will take him off your hands :)
     
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