Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Is this what you are asking about? If yes, those are feather dusters. They are good...filter feeders
+1 for the Colonial Hydroids.Colonial hydroids and they capable of stinging neighbor corals.
Best recourse is to cut the base and remove the colony or starve them by preventing food from reaching them. They favor pods and brine shrimp. Directing flow towards them, Not at them will prevent food particles from getting to them
Yes it is the Worm/feather duster looking thing. They retract quickly to light or disturbance, and are spreading quite fast. Also very small only like an inch tall.I have these in my tank, and they are dusters
They started on another piece of rock out ion the bottom in the shade. And retract fast not slow.+1 for the Colonial Hydroids.
Have a look the tentacles, they aren't feathers like, they are more and like strings, which have the hydroids usually, and if you look more, all the peace LR it's covered from the bottom to the middle, and the MAIN: The feather dusters almost never grow on the lighted side of rock, you can see them mainly or always on shaded areas, but never like that (only if the rock have changed position). The Hydroids use the lighted areas.
If the OP disturb them, they will hide, but a bit slowly not like the feather duster worms.
And there is more, they are all connected at some point and share between the nutrients, that's the way how they cover the weaker hydroids.
The little white duster looking thingsWhat