Yup, Another "WHAT'S THIS?" thread...

Discussion in 'ID This!' started by kzziboy, Sep 13, 2009.

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  1. kzziboy

    kzziboy Astrea Snail

    Joined:
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    These "circles" are all over the glass in my 55 gallon FOWLR.
    I have 4-65 watt pc's. Two are 10k super daylight and 2 are actinic.

    Any thoughts?
     

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    kzziboy, Sep 13, 2009
    kzziboy, Sep 13, 2009
    #1

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  2. steve wright

    steve wright Super Moderator

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    what you got there kzziboy

    is coralline algae

    it uses calcium, magnesium , its not a algae that is caused by any nutrient problems
    but if thats the front of your tank glass, its a nuisance all the same

    carfull use of those scrapers that are a razor blade on a stick, can help to remove it
    you need to be carefull not to scratch the glass though

    Steve
     
    steve wright, Sep 13, 2009
    steve wright, Sep 13, 2009
    #2
  3. kzziboy

    kzziboy Astrea Snail

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    That's what I thought. The only thing that made me think it wasn't was that my Live Rock seems pretty void of it. I don't have a lot of purple or pink growth on my live rocks at all. In fact, it seemed like I had more when I first replaced the old PC bulbs about 5 months ago.
    Any particular reason why it's going nuts on the glass but I don't seem to see it on my rock?
     
    kzziboy, Sep 14, 2009
    kzziboy, Sep 14, 2009
    #3
  4. mattheuw1

    mattheuw1 Montipora Capricornis

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    coralline like smooths surfaces like plastic and glass. It usually starts to cover these first, then your rock.
     
    mattheuw1, Sep 14, 2009
    mattheuw1, Sep 14, 2009
    #4
  5. divott

    divott Giant Squid

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    i assume you want it on your rocks? i might be wrong on this , but when he scrapes the coraline off the glass , could he places the pieces of it onto his rocks qand it would spread from there?
     
    divott, Sep 14, 2009
    divott, Sep 14, 2009
    #5
  6. kzziboy

    kzziboy Astrea Snail

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    Yes! I would like it on my rocks.
    Here's how it went down...
    First I had about 45 lbs of Live rock with good coraline coverage in my 55g. I then added another 50 lbs of live rock and cycled the tank WITH the older Live Rock. Since then the coraline coverage has faded on my older live rock. In the last month or two, that's when it started taking off on the glass.
    After you add new live rock to a tank with existing live rock, is it normal to have it fade or for the coverage to decrease as the tank cycles?
    FYI the tank has totally cycled an my water parameters are great and have been that way for about 10 months.
    Any thoughts are appreciated!!!
     
    kzziboy, Sep 14, 2009
    kzziboy, Sep 14, 2009
    #6