Any idea?

Angel 0249

AC Members
Feb 25, 2007
215
0
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UK
Hi i have got what i can only describe as being little palm trees growing on my rock.

They are brown in color and open up during the day and close at night.
Any idea what they are,and are they good or bad for my tank?

Thanks.
 
marinepics001_0600x501.jpg

I am talking about the little brown palm like trees on the rock.
 
Yupp star corals I think. They are beautiful. If you want to keep them, what type of lighting do you have? Dosing phytoplankton also helps.
 
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