Urgent help needed Crabs in live rock what must I do?

Discussion in 'Urgent Help Needed' started by Snoek, 26 May 2013.

  1. Snoek

    Snoek

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    Hi all. I have started my 1st marine tank yesterday and have just noticed that there are a few crabs in the fiji live rock. Must I try and get them out considering I want to keep fish and coral? They are small and I am not sure I will be able to catch them. What will they do to my tank?
     
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  3. NJH

    NJH

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    Rather remove them. Take the relevant rock out. A sharp skewer can be used to push them out alternatively crush them. You can also squirt fresh water or even better, soda water in the holes to get them out.
     
  4. Fred d

    Fred d

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    Post a pic so we ca see . Most species are bad news
     
  5. Snoek

    Snoek Thread Starter

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    Fred D come have a look at them. My bb does not take good photos.
     
  6. NJH

    NJH

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    Trust me. Hitchiker crabs are almost always bad news. Rather err on the side of caution. Remove them.
     
  7. RiaanP

    RiaanP Moderator

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    in Fiji crabs can hide a lot better than in Kenyan rock

    Still found crabs after I took out the rock and inspected them 3 times.

    Can use a cable tie to push then put, or wash then out with RO
     
  8. Perky Pets

    Perky Pets Sponsor

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    Or , you can put a wine brandy or wine glass ( a typical bowl shape ) leaning against the rock where you see them. ( and you can try different positions every night. )( The glass ):p
    Put a small piece of fish or calamari ( finger nail size) in the glass and nows is the best tome because you don't have fish that might try get to it as well.

    The idea is the crabs will want to scavenge the decaying fish piece and clime into the glass , but cant clime out as the sides are two smooth.

    Its worked for many people before , - give it a try tonight after dark...
    It may be allot easier than trying to re scape afterwards .

    Good luck
    D
     
  9. Snoek

    Snoek Thread Starter

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    Hi all. I did the soda water trick an managed to get one crab. David I am also trying your trick with the wine glass so I will keep you posted because there is 5 or 6 of them left in the tank.
     
  10. MistaOrange

    MistaOrange

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    @Snoek pm me your address I'll pop in & help as I live in your area.
     
    Last edited by a moderator: 26 Nov 2015
  11. Snoek

    Snoek Thread Starter

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    Soda water 1 and wine glass 2. 3 crabs down 4 to go. Anybody want some?

    IMG-20130529-00162.jpg

    IMG-20130529-00163.jpg
     
  12. MistaOrange

    MistaOrange

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    Sean are you able to take a better pic of that crab?
     
  13. Snoek

    Snoek Thread Starter

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    Sorry bud the blackberry does not take cool pics

    IMG-20130529-00164.jpg
     
  14. Fred d

    Fred d

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    So you have crabs ......
     
  15. Fred d

    Fred d

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    Does it itch ......
     
  16. Fred d

    Fred d

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    Sorry ... couldnt resist
     
  17. MistaOrange

    MistaOrange

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    Hahaha Fred good one boet:thumbup:
     
  18. MistaOrange

    MistaOrange

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    That looks like a gorilla crab which you don't want in your tank as you'll loose coral.
     
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