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Old 02-19-2013, 10:35 PM   #1
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Mystery Worm

Hello all.


I'm restarting my 75g. It's been down for a while. I decided to buy done live rock to reseed it and this morning I found this guy hanging out of one of the new pieces.
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Old 02-19-2013, 11:12 PM   #2
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Looks like a brittle star- or 2 bristle worms
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Old 02-20-2013, 12:35 AM   #3
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I'm with ktomminello on this. Either way, wicked cool pic! Watch the spot for a few days. If it moves from place to place and doesn't continue to appear in a pair or group, I'd say worm. If it stays in the same area and is usually in a pair or group, probably a star. Keep us posted!
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Old 02-20-2013, 09:58 AM   #4
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Yeah i had a lot of them in my tank. Lfs said that they're a good thing but also said to watch and not let them over run your tank. I got rid of mine by lowering the amount of feeding my fish to once per day
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Old 02-20-2013, 10:09 AM   #5
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Thanks for the responses. Two days and its in the same spot. Comes out for a few then disappears. Last night I heard something coming from the tank that has me baffled. It sounded like tapping or clicking. It's a small rock only four pounds I can't imagine that there is a critter big enough in there that could make such a loud noise. I google it and it seems that there are others in the hobby that have experienced the same noise after adding live rock. It's either a pistol shrimp or a mantis shrimp. I was up till two in the morning trying to spot the culprit without any luck. I've never experienced anything like this and I'm wondering if I should be worried.
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Old 02-20-2013, 12:54 PM   #6
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Well mini stars are harmless and bristle worms are super beneficial. The tapping, you correctly narrowed down. The old bottle trap technique should allow you to catch it for identification. If its a mantis, sell it! Heck, I'll buy it! I have a sump it can live in. Pistols are cool and fairly reef safe.
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Old 02-20-2013, 12:59 PM   #7
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There are also rock boring crabs that can make a bit of noise as they burrow in.
Yours is definitely a worm. See if you can pick it out here:
Worm Hitch Hikers
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Old 02-20-2013, 01:03 PM   #8
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Doug, I hadn't considered the crabs. Do they make a comparable clicking?
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Old 02-20-2013, 01:09 PM   #9
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Quote:
Originally Posted by MacDracor View Post
Doug, I hadn't considered the crabs. Do they make a comparable clicking?
You can definitely hear them. I mean, think about it- they actually dig a hole right through solid rock.
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Old 02-20-2013, 01:24 PM   #10
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Haven't seen what is causing the tapping but I definitely hear it. I'm kind of confused...should I keep him or trap him? I've seen pics of them and they get huge!! Kind of cool but from the looks of it I would have a 75G mantis only tank?
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