Dark yellow algae??

Discussion in 'New To The Hobby' started by juliew, Oct 7, 2008.

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  1. juliew

    juliew Coral Banded Shrimp

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    Location:
    Central Florida
    Our new tank is cycling. Some of the coraline on the cured live rock started turning white yesterday (we put the rock in last Thursday). Today, some of the rocks are getting dark yellow patches.

    Is this bad? Or is it just part of the cycling process? If it is a problem, I would like to take care of it now rather than later. :)

    Please give me your comments & suggestions!
     
    juliew, Oct 7, 2008
    juliew, Oct 7, 2008
    #1

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  2. missionsix

    missionsix Super Moderator Staff Member

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    Sounds to me like some yellow sponge. I've got some l/r in my sump that has a really nice yellow sponge growing on it.
     
    missionsix, Oct 7, 2008
    missionsix, Oct 7, 2008
    #2
  3. GuitarMan89

    GuitarMan89 Giant Squid

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    if the coraline turns white, it means it is dead, but it should grow back in time. I wouldn't worry too much about the yellow patches, proabaly is a type of sponge
     
    GuitarMan89, Oct 8, 2008
    GuitarMan89, Oct 8, 2008
    #3
  4. reefnut1

    reefnut1 Spaghetti Worm

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    Your rock will probably have color changes and sponges and other growths that will come and go as the tank cycle. Some of them may live others may not. Many sponges can become very attractive to have. Yellow is a pretty common color.
     
    reefnut1, Oct 8, 2008
    reefnut1, Oct 8, 2008
    #4
  5. Phayes

    Phayes Aiptasia Anemone

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    Yellow patches could be, and likely are diatoms (a form of silicate based algae that commonly occurs during cycling). You may also notice this algae on your sand and glass at some point within the next couple days. It tends to go away on it's own after a week or so.
     
    Phayes, Oct 8, 2008
    Phayes, Oct 8, 2008
    #5
  6. juliew

    juliew Coral Banded Shrimp

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    Thanks very much for the information!
     
    juliew, Oct 8, 2008
    juliew, Oct 8, 2008
    #6