worm

I just cleaned a bunch of algae out of my sump and found these critters that look like tiny smooth (no hair or bristles that I can see) caterpillars. I’ve never seen these. In the photos they look flat, but they aren’t. They are nice and chunky. Any help on an ID is appreciated!

Anemones? Worms? Seems like the have stringy tendrils and tentacles around a mouth? Video makes it clearer but it’s being difficult about loading

Hey everyone Planning on setting up a species only tank for a bobbit worm but having trouble locating one Anyone have one they want to get rid of or have any leads on where to find? Thanks

I just saw a relatively big worm come out from my rock and grab the leftover brine shrimp and then back out to the rock… should I be worried? What is this?

I have never had a bristle worm and really don't like them! Can anyone give me some more information on this one?

Tiny red worm that came in on a hammer. Can anyone ID this?

Hey everyone, Pretty sure a Feather Duster caught a ride in my Goni, but is it harming by setting up camp inside the Goni skeleton? Here are videos from a week ago with the gonis extended but now the Goni hasn't come out like it used to. the FD sticks out of the dead (darker) part of the...

Hey everyone, Pretty sure a Feather Duster caught a ride in my Goni, but is it harming by setting up camp inside the Goni skeleton? Here are videos from a week ago with the gonis extended but now the Goni hasn't come out like it used to. the FD sticks out of the dead (darker) part of the...

Hello, I have this very long gray worm that came with my live ocean rock. It looks smooth and I can't find anything that looks like it online. I’ve seen it on top of the sand but it’s currently underneath. Can anyone id it?

Should I be concerned lol - What is this creature in my rocks?

Is that white stringy thing a Parasite?

Found this weird worm critter in my tank Not thrilled at all. Does anyone know what it is? Hasn't burrowed under the sand a few mins later. Kinda looks like it has legs?!

Can someone identify this worm that has come in on a finger coral please. Is it a problem and how would I deal with it if so.

My frogspawn is shriveled up because I just moved it as I put in some different rock, but I just noticed these white dots on it that look odd. Any ideas if this is something bad? It’s usually in full extension when I don’t tick it off my moving it. Thanks

I am in the process of moving my tank to a larger one. While removing the rock and sand I caught 3 large worms. I can’t tell if they are large bristle worms or possibly Oenone fulgida? They don’t have the large tentacles of a eucilide. It has a black mouth/head which doesn’t match my other...

Hello! Recently, I've noticed tiny creatures in my 16-gallon saltwater aquarium, similar to worms but with miniature hands. They've been consistently present in my filter during changes. Unlike the ones in videos, mine walk between rocks and don't swim. Any insights on what they are and if...

White worm found in rock. I was chiseling away pieces of rock with mushrooms. He was literally running through the rock away from me. Found this massive flatworm in there too, 3-4”. What is the white worm? Peanut? This is the third predatory flatworm I’ve found in this tank. What is it, what...

Hi!! Guys I need your help, a couple of days ago, I noticed tiny things in my tank, I do not know if they are worms, bugs, or what they are, but I know there are tons of them. And I do not know if they could be harmful or not to the reef. So I was wondering if any of you guys can identify...

Came in on something I bought at a swap. Didn't notice until next day so I'm not sure what it was on.

I have been setting up a small NPS tank with my Fluval Evo 13.5 and recently noticed a small red object in the sand bed. At first I thought it was just a left over piece of Gracillaria or something but I took a closer look earlier because I noticed it had moved and realized it has lots of little...

So I have a few bristle worms in my tank.. however in this video it seems that it has a green or greenish blue shimmer to the top of it. Is this just from the lights or the shimmer of the water? Just curious if anyone knows?

I have started to see a number of these very small (1 - 2 millimeter) brown/orange worms on the zoa garden. Zoas seem fine. I collected one and put it in water on the top of a small plastic coffee lid. Photo and video below. I've read there are benign worms that match this size, but I'd like...

Hello Folks! Have a worm like creature in my tank. Can you please help me identify what it is? is it harmful? Do i treat my tank to get rid of this?

I got some snail hitchhikers in a plant and I was like ok kinda cute I don’t want to kill them and now in the snail tank there’s a bunch of these stringy worms suddenly . I’ve looked through a lot of these threads and I’m not seeing any pics of the same worms I have. They are very microscopic...