ID Please

Discussion in 'ID Needed' started by psycho, 15 May 2007.

  1. psycho

    psycho

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    I have had this piece of rock for 4 years, and suddenly this pops up

    [​IMG]
     
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  3. Copperband

    Copperband

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    its a macro algae Wessel, can be because of the sunlight the tank is getting.
     
  4. psycho

    psycho Thread Starter

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    Good or Bad ??
     
  5. Copperband

    Copperband

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    good last time i heard. Seen some German tanks that has macro algae as features. Seawater plants i guess.
     
  6. psycho

    psycho Thread Starter

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    It gives a bit of colour to the tank,
     
  7. leslie hempel

    leslie hempel Moderator MASA Contributor

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    wow those must have been dormant all this time or a new spore may have settled on that rock... i remember buying a rock of yellow bali polyps and having 5 different types of macro algae grow out of it... of course it was during the era of trying to get plants to grow in our tanks so i was so pleased.....

    now its a pest.... he he weird how times have changed....
     
  8. viper357

    viper357 Admin MASA Contributor

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    I think it may be called halimeda
     
  9. viper357

    viper357 Admin MASA Contributor

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    Halimeda (Cactus Algae) are generally hardy in a marine aquarium, and few fish will feed on it. It is not an invasive plant that will cause harm to close neighboring corals or invertebrates. In addition to light, it requires a sufficient level of calcium to grow. They are not as tolerant of high nitrate or phosphate levels compared to some other algae. They also do not tolerate extensive pruning.
     
  10. psycho

    psycho Thread Starter

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    Thanks Dean
     
  11. Hill

    Hill

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    How fast does it grow?

    The fact that few fishes eat it and they do not tolerate extensive pruning rings alarm bells for me.
     
  12. viper357

    viper357 Admin MASA Contributor

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    it could also cause havoc with your calcium levels
     
  13. psycho

    psycho Thread Starter

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    Not very fast
     
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