ID please

[vetteguy53081]

Not a sundial or Turbo (haven't heard much of the latter breeding in captivity). Looks like a Collonista snail, a beneficial grazer that often hitchhikes on live rock and will multiply over time.

They are harmless filter-feeders. Also called fan or feather duster worms.

The common bristleworms you have are very young but will grow over a few months. Here is a similar worm (the darker part of the worm is its digestive tract):
https://www.youtube.com/shorts/JVFDbVMvkJc

Harmless bristle- eats uneaten food and detritus.

 

[vetteguy53081]

Is this a bristleworm? And is that a feather duster on the left?

I was looking earlier on my phone. So looked at pic again on my pc and may actually be a Nereid worm (if I spelled it right which eats uneaten food and anything meaty- even pods.

 

[Pudgeshambley]

Not a sundial or Turbo (haven't heard much of the latter breeding in captivity). Looks like a Collonista snail, a beneficial grazer that often hitchhikes on live rock and will multiply over time.

They are harmless filter-feeders. Also called fan or feather duster worms.

The common bristleworms you have are very young but will grow over a few months. Here is a similar worm (the darker part of the worm is its digestive tract):
https://www.youtube.com/shorts/JVFDbVMvkJc

I think the worm on the frag rock looks different. That looks like the first worm I posted a picture of.

 

[Pudgeshambley]

I was looking earlier on my phone. So looked at pic again on my pc and may actually be a Nereid worm (if I spelled it right which eats uneaten food and anything meaty- even pods.

Definitely could beone of these. But also looks like a fire worm to me.

 

[EeyoreIsMySpiritAnimal]

Why not just dip the frag and be done with it?

 

[Pudgeshambley]

Why not just dip the frag and be done with it?

That would be too easy. It's my first tank and I am fascinated by everything. Plus everyone says diversity is good so why kill something that is harmless. And even if I took it out and dipped it I would want to know what it was. What happens when a tube worm shows up on a rock I can't remove? Now at least I can look at it and say oh that's just a tube worm.

 

[WheatToast]

I think the worm on the frag rock looks different. That looks like the first worm I posted a picture of.

It's the same worm. They just look very different under different lighting conditions and backgrounds.