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Old 11-29-2010, 12:57 PM   #1
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backside of the rock there are little tube like structures on it

I just had to have this rock. On the backside of the rock there are little tube like structures on it looks to be incrusted onto the rock are those bad or good to have on a rock? Or should you avoid rocks with those on them?
It weighed 14lbs. about 12+ inches long
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Old 11-29-2010, 01:04 PM   #2
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I have several live rocks with those, I'm not sure what they are however. I figured that they were just dead sea life of some kind, and not harmful.
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Old 11-30-2010, 05:40 PM   #3
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from my research those tube looking "thingys" are from feather dusters or the like they do no harm, they were "baby" feather dusters that "hitch hiked" on the LR
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Old 11-30-2010, 05:42 PM   #4
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Old 11-30-2010, 05:48 PM   #5
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They are just feather dusters and they are good for your tank. They are good filter feeders and will help to get rid of excessive nutrients in your tank. They wont get as big as regular feather dusters. Hence why they are really called mini dusters.
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Old 11-30-2010, 05:50 PM   #6
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yeah, they are harmless. btw, look for the most porous rock you can find. the lighter the rock is, the better. surface area is what you are looking for. ignore the colors on rock- 90% of the time all that stuff dies off and new stuff grows in it's place anyway.
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Old 11-30-2010, 05:51 PM   #7
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I don't think these will they are incrusted into the rock almost fossilized. To bad too.
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Old 11-30-2010, 05:53 PM   #8
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You`ll be surprised. Mine was like that also.
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Old 11-30-2010, 05:56 PM   #9
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Oh that would be a very nice surprise....
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Old 11-30-2010, 06:42 PM   #10
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I looks like it's dry rock in those pics. As long as it's not completely dried out, there might be some life deep inside, but the die-off from partial drying will cause a mini-cycle most likely.

+1 on surprises.
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