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another unknown hitchhiker for you guys

post #1 of 22
7/24/10 at 7:23pm
Thread Starter 
i dont know if i have 2 of these and one has been hiding since i noticed the second, or if the first one just relocated. heres what i got, it doesnt seem to matter if its day or night, out of a barely noticeable hole in a rock comes this little tentacle. first it comes out only about a 1/4 inch like its feeling around, then it comes out about 2 more inches, its clear or white in color and its structure reminds me almost of a feather. once its out that far it just waves in the current unless disturbed then it retracts into the rock. ive attached a simple drawing of what i am seeing because it is too small to catch with a camera.
LL
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post #2 of 22
7/24/10 at 8:31pm
looks like a brittle star arm
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post #3 of 22
7/24/10 at 9:51pm
Thread Starter 
i have a brittle star, so i know its not that, its much thinner and a little longer than a brittle star arm, its almost like a human hair, in fact i thought it was a hair until i tried to get it out of there and it retracted into the rock.
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post #4 of 22
7/24/10 at 11:37pm
how long is the thing
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post #5 of 22
7/25/10 at 2:01am
Thread Starter 
3 inches at the most, the way it moves in the current and how incredibly thin it is makes me think its some sort of worm or a feeding tentacle of something ive never seen. everytime i try to grab it the thing disappears into the rock.
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post #6 of 22
7/25/10 at 2:03am
Hydroid.

Lemme see if I still have some in my tank to get a pic of.
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post #7 of 22
7/25/10 at 2:15am
I moved a little rock closer and they all "ran" inside. When they come out again, I'll have a little visual for ya.
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post #8 of 22
7/25/10 at 12:13pm
Thread Starter 
sounds like your on the right track, ive been searching google images for hydroids, i found some close but not quite exactly the same, but you seem to know what im talkning about, thank you, i really appreciate you guys and this site, its not every day you can get a stranger to go out of their way to help someone they dont even know.
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post #9 of 22
7/25/10 at 12:25pm
Sorry... I feel asleep. I couldn't see any good pictures either of what I was talking about. I promise tonight, when the light comes on, to grab a pic/video.
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post #10 of 22
7/25/10 at 5:47pm
Originally Posted by whysohigh View Post
i have a brittle star, so i know its not that, its much thinner and a little longer than a brittle star arm, its almost like a human hair, in fact i thought it was a hair until i tried to get it out of there and it retracted into the rock.
There are different sizes of brittle stars and some are really tiny and thin.
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post #11 of 22
7/26/10 at 12:35am
I left the camera over to the new house, dang it. Lemme see if I can get it on video.
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post #12 of 22
7/26/10 at 7:22pm
Thread Starter 
i know but this is one single tentacle with the same behavior 24hrs a day for about 2 weeks now.
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post #13 of 22
8/3/10 at 5:27pm
Thread Starter 
now ive got about 5 of them so far. are they gonna keep spreading? are they a danger to anything, theres one right by my galaxy coral?
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post #14 of 22
9/1/10 at 9:20am
Thread Starter 

ok these things are mulitiplying like crazy, i can see about 15 of them is there a way to get rid of these? anyone?

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post #15 of 22
9/3/10 at 5:50am

calk paste should do the trick DO NOT get any on your galaxy

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post #16 of 22
9/8/10 at 2:53pm
Thread Starter 

thanks, good thing you said that my galaxy is right under a nest of these guys. will joes juice work, i have some of that.

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post #17 of 22
10/25/10 at 9:18pm
Thread Starter 

digitata hydroids

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post #18 of 22
10/26/10 at 6:32am

It looks to me like you have micro stars. They are small starfish- part of the janitorial team. There will be lots of them, and their arms come out when triggered by a food source.

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post #19 of 22
10/26/10 at 6:36am
Thread Starter 

no thats not it, ive identified them already, noted in my last post, they are digitata hydroids

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post #20 of 22
10/26/10 at 6:37am
Thread Starter 

now i need to figure out how to get rid of them, does anything eat these guys? theres way too many now to go in and try and use paste.

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