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I'm not sure what it is that you want identified? Maybe take a photo with more white light and describe what it is and where it is on the zoa.
Since it’s covered in rocks from your what looks like your substrate, I’d guess a worm. Maybe a spaghetti. No idea of knowing. Can you pick it off, put it in some water and take a pic with white lighting? Use tweezers to pull off.
Spaghetti worm is just my random guess because of how common they are. They bury themselves in the substrate and filter feed. I’m going to guess, was this coral frag in the sand before you moved it to the cup thing it’s on? If it is a spaghetti, they’re cool. Just filter feeders and help your tank.I’m super new to all of this I have no idea how to circle what I’m concerned with but I will try to just tweezer it off. It’s the white thing on the lower left of frag. It mite be covered in rock but it looks like that all the time. I just figured I’d leave it if it wasn’t harmful. I dipped my corals when they arrived Monday and this thing showed up later in the evening. If it’s a spaghetti worm are they bad. Every thing I read online is soooo very contradictory. That’s why I join this group. Thanks again for you help and input. I will try to find how to mark or draw on my pic now.
Spaghetti worm is just my random guess because of how common they are. They bury themselves in the substrate and filter feed. I’m going to guess, was this coral frag in the sand before you moved it to the cup thing it’s on? If it is a spaghetti, they’re cool. Just filter feeders and help your tank.
I think i see a tube made of sand...Spionid worms do that![]()
I think i see a tube made of sand...Spionid worms do that![]()

