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What is one of the colors on a clownfish? (hint there is a clownfish on the CR logo in the top left corner of the page.)

thin strands from live rock at night

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  1. #1

    Default thin strands from live rock at night

    i am looking into my tank at night with my red light and I am seeing alot of white strands that seem to be coming out of strands of sand attached to my live rock. I believe I also saw a bristleworm.

    The bristleworm appears to be very small (maybe about an inch)

    Is this normal?

    It seems everything comes to life at night time in the tank. Quite interesting to watch! =)

  2. #2
    jojo22 - Reefkeeper Registered User
    Join Date
    Nov 2005
    Canton, Ohio


    Very much so and should make you happy. Your tank is hitting "puberty".
    Does water always taste like salt and poo????

  3. #3


    the strands are probably spagetti worms, and the bristle worms are good to a point. they get SO big that IMO, they should be removed when they reach a length of about 6".

  4. #4
    CR Member
    Join Date
    Apr 2006
    Peculiar, MO


    They are a form of spaghetti worm and are beneficial to be sure. I have several kinds in my tanks and sometimes they all come out at feeding time. The first time i fed squid I thought i had a spider problem! LOL Some of them have grey and black stripes on the filaments and some are just clearish. They have different diameters of the filaments. Keep looking you will see several kinds. I even have some that make tiny sand columns from the sand and put out their feelers and when they are done they go back into the sand and their little columns just fall apart. Congrats!
    The difference between stupidity and genius is that stupidity has no limits!

  5. #5


    I HAD tons, but after I added my peppermint shrimps, I have seen 1 once lol. idk same thing with the bristleworms...

  6. #6


    copperband butterflies eat them too. that is what i forgot to mention !! duh

  7. #7


    I would not call spaghetti worms totally harmless. they will irritate zooanthids bad enough that they will die. I had a pretty bad problem with them in my frag tanks. I added a peppermint shrimp and took care of them. but other than that they are good little snacks for your fish that forage in the rocks (copperband,6 linewrasse,mandarin,etc)
    fulltankshot 1 - thin strands from live rock at night

  8. #8


    thanks for the info!

    They actually do look like little pieces of spahetti. I've only seen one bristleworm so far, there may be more. my coral banded shrimp is amazing to watch at night. he sits right in the current with arms outstretched like he's soaking up sun rays. really fun to watch.

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