Hydroids or something else?

[Miamialum620]

I’ve got a 32g biocube that’s been set up for about a year and in the last two weeks I’ve noticed several newcomers to my tank. Should I be concerned about these and how should I handle it? Sorry for the bad photos.

1.) There are there white circles/spirals all over the rock work and back wall

2.) On the same picture you can see this white tube growing on the frag plug

3.) I’ve noticed these purple-translucent stalks along the rocks and upon further inspection a large group of them near the back of rocks. I’m not sure if it’s Aiptasia, hydroids, or something.

 

[Turnage]

Looks like aptasia but hard to tell.

 

[Rjukan]

1. Spirorbid worms
2. Feather duster
3. Maybe vermitid snails? Can't get a definitive ID from those pics.

 

[OutsideBrian]

Looks like dusters to me

 

[Bryson.bobby]

Looks like aptasia but hard to tell.

+1

 

[Sparky88]

Aptasia +2

 

[sixty_reefer]

1. Spirorbid worms
2. Feather duster
3. Maybe vermitid snails? Can't get a definitive ID from those pics.

What he said but number 3. Is jelly fish buddings, basically jelly fish on its polyp stage. Nothing to worry about in about 20 days you will see proper jellyfish forming, they will leave the buddings, and most probably perish sucked by a pump etc...

You can see them in this short video


Look for the red circle in the pic, we’re the brown little jelly is strobing

 

[Miamialum620]

What he said but number 3. Is jelly fish buddings, basically jelly fish on its polyp stage. Nothing to worry about in about 20 days you will see proper jellyfish forming, they will leave the buddings, and most probably perish sucked by a pump etc...

You can see them in this short video


Look for the red circle in the pic, we’re the brown little jelly is strobing

It does look a lot like that first picture you provided. I’m hoping that’s it and I have no idea how they would’ve got in my tank.

 

[sixty_reefer]

They come often on live rock

 

[Miamialum620]

Got some peppermint shrimp on Tuesday. If it is indeed Aiptasia hopefully the shrimp will take care of it. Not entirely sure how I can entice them to eat it though.