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mysterious creatures

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marinetankman

Member
Joined
Nov 13, 2004
Messages
8
Location
ct
hi there , i was cleaning my tank today and i have some large pc of dead coral that i leave in my tank i started to scrap the coral when as i did i notice these small 1/2'' tube like things come out of the coral does any one know what these are and should i be concerned also noticed web like cocoon on another pc of coral ?
 

NaH2O

Well-known member
Joined
Jan 25, 2004
Messages
8,568
Hmm...any chance of getting a picture?

The tube things could be a couple of things. They could be empty fan worm tubes, but I'm taking a guess that they are vermetid snail tubes. Have you noticed any "web-like" strings coming out of them?

here is a picture of a vermetid snail:



On the web-like Cocoon....I wonder if it is a scypha sponge. They look like the end of a Q-Tip with some spikes out of the tip. Be careful if this is what you have, as they can give you a good poke. here is a link to a pic of one: Scypha ciliata
 

marinetankman

Member
Joined
Nov 13, 2004
Messages
8
Location
ct
the string stuff looks familar,but i never seen these things lurking around they just kinda come out of the coral when i took it out and brushed it , the cocoon thing looks more like a pc of cotton , i am still working on the picture thing
 

Angelscrx

Import Fish
Joined
Jul 30, 2004
Messages
1,103
Location
Ettrick, VA
marinetankman said:
the string stuff looks familar,but i never seen these things lurking around they just kinda come out of the coral when i took it out and brushed it , the cocoon thing looks more like a pc of cotton , i am still working on the picture thing
Sounds like sponges on the cotton thing. You can get them in all kinds of colors. I have white, pink, and yellow sponges in my tank. It doesn't sound like anything to worry about though but pictures would help.
 

Elmo18

Clownfish
Joined
Aug 5, 2003
Messages
2,662
Location
Seattle
The 1/2" tube things you describe could be several things...pineapple sponges (if it is off white in color), a calcacerous sponge (if it is whitish at the base and bright green at the top half), etc.

As for the cocoon looking thing...it's probably another type of sponge.

- Elmo
 
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