What is this?

PederP

New member
I have this little thing spreading in dark areas of my tank. They grow very slow.
It looks very much like a sun coral, but brighter in color.
When they are small, the skeleton is very easy to break off. It's shaped like a small bowl, with a small point of contact. When they get bigger it turns into a tube.
They form small colonies.

Small one




Bigger, and with small "tube"


Colony


Any ideas?
 
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