Keep or discard

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Weird feather tree looking thing growing. Used to be one but now theres two. What is it and do i need to get rid of it?

Also. Do zoas poop? I saw this bloke and the black strand kept on getting longer and longer so i just assumed hy druk n drie.
Pic also attached

20160419_064942.jpg


20160418_101647.jpg
 

RiaanP

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yeah, zoa do poop.
Actually they eat and poop through the same opening... yuck...

And the tree looking thing, I do not know.
 
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@jimilutz i googled and its not a hydroid. Thanx for your input. Though its a awful pic i will try snap i clearer one today
 

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