Pix & ID: Critters that come in your rocks: the good and the bad.

You're welcome! There are probably hundreds of species, though, so I'm not sure if there's a way to id the polyp further, even with a better picture.
 
Photo taken in the bottom of a 6oz clear cup (hence the 6.. for sizing) It is not attached to the snail shell... although there was a smaller one there too so I took it out of the QT also. This one was on a piece of eggcrate, it broke off but I also clipped off that section of crate- just in case.
Thanks!
Andrew

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Ever since I started my cycle I've kept my refugium filled with live rock. After some advice, decided to pull the rock from the refugium and just have it bare so that the detritus can settle or flow through the refugium easier and be picked-up by the skimmer.

When I pulled the live rock out of the refugium, I noticed small growths all over the rock. Can't tell if they are alive or not (they don't move from what I can tell). They are cream in color and range in size from about 1/16th an inch to maybe 1/3 an inch. They are soft and can be pulled off the rock. I keep no light in my refugium. Pictures below. The first picture is a piece of egg crate that was left in my refugium as well.

Any ideas what these are?? Good, bad, indifferent? :confused:

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Hey hi guys.. I'm puzzling to id this one
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Does it move or is it stationary?

It could be a tiny specimen of the anemone Thalassianthus aster, or it could be some soft coral etc.

Very hard to say at that size... If it moves at all, that does rule out soft corals, though...
 
yes it move, slowly but it move, it find itself a spot with more light and current..

Should it keep it and let it grown ?

Thanks for the direction, i ll dig that..
 
Ok heres one for you, I'm thinking brittle star, but I only see one or 2 legs if it is. I also have several of these spread over my live rock, and they always come out from a hole in the rock. I have never seen more than one or 2 legs(shoots?) thats why it has me confused as to maybe not being a brittle star.





 
@guigui: Some keep them, others consider them a pest (like Pumping Xenia). I'd keep it and if it multiplies too much I'd use kalk paste to keep it in check.
 
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