What are these worms??

[Imnotjakeyv]

Just noticed these little worms all along one side of my tank they are all living in my sand bed and making little tunnels along my glass not really harming anything just curious what they are. Any help IDing these little guys is much appreciated just wanna learn as much as I can!

 

[ZipAdeeZoa]

They kind of look like teeny tiny bristleworms, have you seen any larger than whats pictured?

 

[ScottR]

Spaghetti worms. They’ll send out feeders later on.

 

[Imnotjakeyv]

They kind of look like teeny tiny bristleworms, have you seen any larger than whats pictured?

i do have one living inside one of my live rock and kinda figured it may be more of them just figured I’d make sure. I’ve read a lot of mixed results on whether or not they are bad for the tank over all but. I kinda have decided that as long as it’s not a fire worm I’m not going to really worry about it. Mine kinda looks like this one but it’s always hiding lol

 

[ScottR]

i do have one living inside one of my live rock and kinda figured it may be more of them just figured I’d make sure. I’ve read a lot of mixed results on whether or not they are bad for the tank over all but. I kinda have decided that as long as it’s not a fire worm I’m not going to really worry about it. Mine kinda looks like this one but it’s always hiding lol

If a bristleworm is that tiny, it would be in the epitoke stage and would be white and viciously swimming in the water column. Spaghetti worms live in the sand and feed on detritus. If you google it, you probably won’t see many great results about them in reef tanks or you’ll see some macro shots that make it look huge. They’re commonly seen as some of the first inhabitants in newer tanks.

 

[ScottR]

Looking at the last pic, it does resemble a bristleworm however

 

[Imnotjakeyv]

Looking at the last pic, it does resemble a bristleworm however

Do you mean the up close bristle worm pic? Orrrrrr do you mean the last pic in the original post? Lol I know for a fact I do have atleast one bristle worm.

 

[35ppt]

Redacted

 

[Angelwolf21203]

Following. I have the exact same critters in my substrate, and I do have some bristle worms, too.

 

[Imnotjakeyv]

First two photos make me think dorvilleidae, last one looks like common bristleworm. Either way, nothing of concern in those photos.

Ok so I went on critter guide and they have a video on dorvilleidea and the video shows the little mouth part moving and that is exactly what they are in my tank. Thank you everyone!