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Thread: brown macroalgae in display tank

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    Curious Reefer
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    brown macroalgae in display tank

    Can anyone help me to ID this brown macroalgae that started off the live rock and is now several inches tall? I really like how it looks but would not want it to suddenly do a sexual reproduction and spike the nutrients. Just listened to the macroalgae podcast and it now has me a little worried. Thanks. Steve
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    Master Reefer laurabolyard's Avatar
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    can you point to it ? I REALLY should wear my glasses! Is it feathery?
    wow, time to update!!

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    it is the long greenish brown structure on the right side of the pic, looks like seaweed you would see in a kelp bed, with small rounds balls that I presume are for flotation. Think it is sargassum macroalgae but not sure if this is a problem in a display tank.

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    Master Reefer laurabolyard's Avatar
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    Sargassum

    could it be this?
    wow, time to update!!

    125 gl reef
    37 gl sump/fuge
    3x250 20k radiums
    dual uverflows
    Most people have skeletons in their closet, mine are in my sump!

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    Master Reefer laurabolyard's Avatar
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    Its a link
    wow, time to update!!

    125 gl reef
    37 gl sump/fuge
    3x250 20k radiums
    dual uverflows
    Most people have skeletons in their closet, mine are in my sump!

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    Curious Reefer
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    The leaves are a bit more slender and the air bladders are very prominent and shimmer giving it a xmas tree look... but same color and likely family. Thanks as from the link it seems to not be terribly troublesome. Does this sometimes sexually reproduce and give a nutrient spike like caulerpa can?

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    Grand Master Reefer CarmieJo's Avatar
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    I've not heard of it going sexual. I would prune it on a regular basis as it can multiply and crowd out other things.
    Carmie


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