I bought some live rock from KP Aquatics. Can someone please help me identify what these tube like structures are? The tip of the tube is florescent green (three in middle of the picture)
. Are these vermitid snails or something else?
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The tube was flexible when I removed some with a small metal scraper and some by filling it with my fingers. I have not seen the tubes expel any sort of mucus during feeding (I was watching for that specifically today when I fed the tank mysis + Benepets). Maybe I will let them grow for a bit and see what happens. I removed all I could find a few weeks ago but they seem to be back on this rock now.Fibrous suggests tube worm. Is the tube rigid or flexible? Vermitid shells are more like glass. Kind of have the consistency of peanut brittle but much sharper, and their shells are rigid. But if it was a worm the fan should be coming out, so it might also be dead. If a big net of mucus comes out when you feed the tank it's a vermitid.
So in the picture, on the left, I'd associate the grey with pale 'lips' with a tube worm. But on the right, the brown tube, looks more vermitidy.
Thanks, I will looks those up!My first thought would be hydroids (or potentially polyp stage jellyfish), as some colonial hydroid species fluoresce similar to this.
Hydroids with a tube?My first thought would be hydroids (or potentially polyp stage jellyfish), as some colonial hydroid species fluoresce similar to this.
Or jellyfish polyps, yeah - the clearest examples I know at the moment:Hydroids with a tube?