anyone know what this thing is growing on my live rock?

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Bazinga

Feeder Fish
MFK Member
Feb 18, 2010
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toronto
just like the title says theres 2 of them, just appeared on a rock that i bought they live inside the rock and pop out when they feel its safe, 2 spiral lie towers and that flap never seen them before soo just wondering what it is:P

IMAG0155.jpg
 
lol looks like a type of tube worm?
 
bigbadfish711;4764352; said:
Its a Helicoradian from Avatar.
Click to expand...
they deff look like that but not as big and hopefully wont get that big :P is that just animated or is that the real plant?
 
Spirobranchus giganteus is what theyre called after searching the avatar form i found out what they really are:P
 
does anyone else have these? and are they safe to keep?
 
They're totally safe, just a harmless filter feeder. In nature, they form a symbiotic relationship with coral like Porites (the skeleton is the rock in the pic). If you want them to live, dose the tank regularly with phytoplankton.
 
+1 for simonL.

If you ever mix up your substrate, they will also pull that crud out of the h2o as it drifts past them.

I have never had to target feed these guys, they should spread for you though if kept happy.

I actually heard that those avatar creatures are based off of underwater animals, or at least a lot of the stuff was inspired by underwater life.
 
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