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are these things on my live rock harmful?


dorynemo

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hi all,

 

i recently moved my 2 beloved fish (clown and blue tang) from a smaller fish only tank which i had for 3 years, to a bigger tank with live rock.

 

i have read through some posts about things on live rocks, and ive found something on my rock that looks sort of like an aptasia. ive attached a pic and also some pics of other things on my rock i hope you guys can help me identify! and guide me to whether they are harmful or not ..

 

i also have many little sprouts on my live rock, which is in one of my pic. are they aptasia sprouts?

 

and also theres many things which sprout out into a large circle with brown in the middle (also attached a pic, but abit hard to see)

 

i'm actually abit nervous about them living in the bigger tank because i'm scared the live rock might have things which may harm them! they have actually paired up very well together and ive fallen too much in love with them !

 

anyway .. thanks in advance to all who help and reply :)

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yuridelima

First three pics are definetly feather dusters. I have one that looks just like the one on your third pic. I don't know what the last one is, kind looks like some kind of worm, but I've never seen one like it.

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SaltWaterNewb

Feather dusters, they are neat little critters and they are filter feeders so they are good for your tank. The other one I don't know either.

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CorvetteJoe

My Sixline ate all my feather dusters :(

 

that last pic looks exactly like multiple bristle worms coming out of the rock, but I don't think they stick straight out like that unless they are going after something. On second look, it could be a brittle star down in a hole sticking some arms out?

 

*shrug*

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yuridelima

Same thing I was thinking, It might be a brittle star. I was checking some guy's tank and he had one that looked just like it. Can't find pic now, else I would post it

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thanks to all who replied ! :)

 

im convinced the third pic is a feather duster (i think they are so pretty)

however i'm also being told else where that the first 2 may not be feather dusters :( and they might be hydroids?

 

and wow.. brittle star, how exciting! hopefully i can see more than just its legs one day ...

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