id please

Discussion in 'Beginner Discussions' started by johanpm, 30 Dec 2009.

  1. johanpm

    johanpm

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    hi guys,

    i found a bout 7 of these strange, rugby ball shaped, white things in my tank. they are about 5mm long. is it some kind of egg? only have snails, shrimp and clowns in the tank.

    [​IMG]
     
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  3. Tony

    Tony

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    They look like calcerous sponges. Harmless
     
  4. johanpm

    johanpm Thread Starter

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    spot on. thx tony!
     
  5. jacquesb

    jacquesb Retired Moderator

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    Hi Johan - the correct name for these sponges are hairy ball sponges....
     
  6. Drk

    Drk

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    what do they do and do they get bigger also have some.
     
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