Potential coral pest?

TheSaucyPelican · Nov 18, 2020

Hello! My name is Tyler and I’m new to the reef aquarium hobby. I’ve got a Fluval Evo lll 13.5 gallon aquarium that has been running for a couple months now. I purchased a zoa frag from my LFS to monitor for a while in hopes of it doing well to see if I was ok to start to add in a couple beginner corals. So far they done great but I seem to have a second coral growing on the same drag that my zoa’s are attached too and I have been unable to identify it. I’m just wondering if the second coral growing would harm or discomfort the zoa’s in anyway and if I needed to remove them. I’ve attached two photos below. Thank you all in advance for any help/advice

xxkenny90xx · Nov 18, 2020

I see the zoas, I see what I think is a red algae, and I see either a feather duster or an aiptasia but I can't tell for sure. Which one are you wondering about? Can you snap some more pictures?

xxkenny90xx · Nov 18, 2020

Oh and welcome to the club!

TheSaucyPelican · Nov 18, 2020

Sure thing! Sorry for the quality that’s the best angle I can get. I’ve got two growing out of a white looking stem? On on the top and one growing under the bottom left of my largest zoa polyp right now. It’s whispy and pinkish. It also shoots in and out of that white stem when I turn the lights on/off.

Mr_Knightley · Nov 18, 2020

Welcome to the forum Tyler! I can identify those as feather duster worms, harmless hitchhikers and cool biodiversity for the tank. Over time they will spread to the rock and begin to colonize.