[fishguy_8]

tube worm feather duster whatever you call it whats the actual tube made out of? weird question i know but what is this!? is this a skin or what does the tube consist of? how is it made etc.....as i stare into my tank i started wondering what its made out of just because i think about stuff like that.....is this stuff like skin as the duster grows as does the tube or does the duster make it from the nurishment it derives from filtering the tank.....whats the deal here? this sounds like the "where do babies come from" convo but i'll but a dollar to your penny that the majority of folks probibly couldnt say one way or the other for sure. im just a curious feller so whats this structure made of anyone know?
Jon

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[AquaSeahorse]

I've heard this answered before but cant remember much of it sorry. All I remember is something about mucus , sand, and some other things...

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- Eric -

[Neal359]

(I THINK) their are 2 difrent typs of tub form one cauled a fether duster witch his tub i made of sediment and then their is a cooco worm the crown isnt as big but usualy the cooco mors i have seen in my lfs are a lot more and their colors are much much brighter and their tub is made of calsium

[FishHead]

Well, I think it is some sort of calcerous deposit... Much like snails grow their shells, tube worms (at least the ones with hard tubes) grow by excreting solids.

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[fishguy_8]

so are these tubes sensitive or are they just that a tube? if you dont catch me like in my situation if a aiptasia gets up next to one will it sting the tube in which case would it die? or does it have to get a hold of the tentacles......i know the aips are pressing up close to some of my tubes and wouldnt want this to happen. or are the tubes completely w/out sensory abilities?
Jon

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