Help identifying please

Dtfnemo · Dec 4, 2016

HI guys, I noticed this branch looking things growing on the rock next to one of my corals. I couldn't find any information online of something similar.
Is it the coral growing? Or is it some type of pest that could harm the coral?
The coral don't seem to be bother by it.
I also noticed something similar growing in the back of my powerhead.
Thank you.

melypr1985 · Dec 5, 2016

Are you talking about those white things? Are they hard tubes? If so, the look like featherdusters which are normal and harmless.

Dtfnemo · Dec 5, 2016

Yes, they do seem hard.
Thank you very much!!
Any special care I should give them?

melypr1985 · Dec 5, 2016

Dtfnemo said:
Yes, they do seem hard.
Thank you very much!!
Any special care I should give them?

No they will do fine on their own. They numbers will decrease and increase as conditions in your tank allow... available food, proper -for them-water conditions.