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Old 08-13-2006, 10:32 PM   #1
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Bristle Worm Attacks!

I thought one of my feather dusters had dropped it's feathers, so I went to get some tongs to remove the stuff. As I approached it, it moved backwards!

When I looked closer, I found that a bristle worm had pulled the entire feather duster, head and all, out of it's tube, and was pulling it back to a corner of the tank. I figured I'd let it go, I mean what else could I do?

When I went back an hour or so later, I pulled the feather duster remains out, and it looked like it had had it's insides sucked out! Yuk!

Is this normal, or are my bristle worms getting aggressive? Any other tank residents at risk?
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Old 08-13-2006, 10:56 PM   #2
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Are you sure its a bristle worm? Try to get a pic to get it positively I.D'd. I dont doubt it though because I just had one kill one of my clams!
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Old 08-13-2006, 11:03 PM   #3
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I didn't get a pic of the attack, but yes, I'm 100% sure it's a bristle worm. The bugger was about 2 inches long.
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55g Reef
(3) Maxi-Jet 1200's, Wavemaker Pro
AquaC Remora Skimmer
100lbs Live Rock
20g Refugium
(1) Scarlet Cleaner Shrimp
(1) Peppermint Shrimp
(2) False Percs
(1) Orchid Dottyback
(1) Lawnmower Blenny
(1) Flame Angel
(1) Spotted Mandarin
(1) Red Brittle Star
(1) Banded Serpent Star

"But then again, fish do tend to eat one another. I often wonder ... if fish get awfully tired of seafood? What are your thoughts Hobson?"
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Old 08-13-2006, 11:11 PM   #4
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I've heard once they get over an inch long they become meat eaters if there isnt enough algea for them to eat. However either way I'd remove the big ones that you see. Leave the little ones in there because they can be very beneficial to your system. Here's a little article for you. HTH

http://www.aquariumfish.com/aquarium...id=3791&search
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Old 08-13-2006, 11:16 PM   #5
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Time for some traps then!
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55g Reef
(3) Maxi-Jet 1200's, Wavemaker Pro
AquaC Remora Skimmer
100lbs Live Rock
20g Refugium
(1) Scarlet Cleaner Shrimp
(1) Peppermint Shrimp
(2) False Percs
(1) Orchid Dottyback
(1) Lawnmower Blenny
(1) Flame Angel
(1) Spotted Mandarin
(1) Red Brittle Star
(1) Banded Serpent Star

"But then again, fish do tend to eat one another. I often wonder ... if fish get awfully tired of seafood? What are your thoughts Hobson?"
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Old 08-16-2006, 07:18 PM   #6
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My duster hasbeen doing so well, and then today, The crow is all shredded up...and there is a small hole where something appears to have ripped open the dusters tube.

I only have hermits, an arrow crab, and a few snails.

I have seen a 5 inch long bristle worm in my tank (huge for my 10 gal nano!)...I am pretty sure he is the culprit.
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Old 08-16-2006, 08:37 PM   #7
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How long had your tank been up? Have you added any new rock lately? That happened to me and it turned out to be a Mantis Shrimp!
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Old 08-16-2006, 09:08 PM   #8
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No new rock in months.....not a mantis...I have hermits, snails, and an arrow crab, as well as a small fish, a neon dotty back, and no one has been attacked other than the duster.

I am almost sure it was a bristle worm....it didnt finish off the duster, just tore it up pretty good.....It is still opening....but its crown is all checwed up, about half of it is gone...I dont think it hurt the work itself though.

I dont care how good they are as part of the cleanup crew, I am trapping them.

I feed my tank 12 brine shrimp 3 times a week, as I only have one fish. My trates never go about 2.5. Im not worried about detris.
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Old 09-05-2006, 11:01 PM   #9
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Still Trappin'

Bristle worms galore



Bait attracted my bristle star, hermits, and more bristle worms than I could count.

There's two in the trap and all these coming. I emptied the trap 4 times this evening. One was 8" long stretched out!

I have one feather duster left, hopefully this will thin the herd for a while and give the feather duster some more life.
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Old 09-05-2006, 11:14 PM   #10
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Hmmm... so big bristle worms are bad? I've seen some in my sand (up against the glass) that appear to be pretty long. I've witnessed my Orange Spotted Goby yanking one out of the sand and eating it. That article (thanks ntswift) mentioned sleeper gobies as a predator. Add Orange Spotted Gobies to that list.

Gear-head, that pic is mildly disturbing. What size is your tank?
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