hitchhiker

Any ideas what these brown slug looking things are?

I noticed the start of a spirorbid worm infestation on the back panel of my tank. I have a n. wennerae mantis shrimp, 2 clowns, and a turbo snail. I've tried cutting down my feeding, but that only slowed them down. is there anything I can do to eradicate them fully? thank you

Just found this guy attached to my bounce. Any help is appreciated TIA!

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...

And here I thought I was at least decently familiar with most hitchhikers out there. I haven't the slightest clue what this could be. Weirdest part is that it wasn't there just a few hours ago. Bare rock this morning.

Hello! This isn’t exactly new I saw the hair like feelers a while ago but now for some reason it has really moved around the tank a lot. I’m pretty positive it’s a Spaghetti worm but I want any other opinions as I’m not too versed in hitchhikers. Thank you in advance!

Hi everyone, I was given a good amount of live rock. I currently have a well established tank. My question is this. How can I process this rock to ensure I’m not introducing any hitchhikers? Thank you

Found hiding in a coral

Does anyone know what this slug looking red spec is. Just pulled it off my recently introduced Maxima clam shell. Little horns or eyes poking out from its head. Thanks everyone!

Hi, Put a new piece of rock in the tank recently and this thing has suddenly appeared at some point today. Anyone any ideas?? It looks as though it’s “breathing” in the video but I can’t be sure with it being on the power head. Every days a journey with a new reef tank

We have had a bunch of these guys (maybe 2 or 3 different things?) for weeks. They are in the sump and on the DT walls and when we clean the walls, they are back in three days or less. Any idea what they are, if they are harmful and what to do about them? The DT is 140 gallons, fish and a...

It grew from a greenish mat to the point that now I’m noticing polyps? sprouting from it. Right at the end of my yellow zoas. Pictures under white light.

So this fellas is growing....fast. Like in a couple days double in size and showed up from nowhere. Any ideas? Growing on an Acan skeleton.

Anyone know what this is? It glows fluorescent orange under blue LEDs. I noticed it growing on my live rock recently. Doesn’t seem to spread or grow very rapidly. Is it a cool hitchhiker or something I need to remove? It feels almost like an anemone between my fingers.

I just found this molt on the rockwork of my aquarium and I realized I have never knowingly put a crab like this in my tank. Does anyone know what kind of crab this is? It's barely the size of a dime. I tried to ID it using Google search by image and I kept getting either large Land crab...

^ Top view ^ Bottom view What is this hitchiker? Looks like a fireworm due to the glass hair spines but its too short to be one and the belly looks like a suction cup type deal similar to abalones

Found little isopod-looking guys in my Chaeto as well as on my live rock. They seem to come out at night. They look too big to be copepods... so what are they? Should I be worried?

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...

Noticed this patch of zoas tonight after a herm ran them over. Seems to be quite a few only on this portion of the rock growing all around the base and stem of the zoas. Any ID help would be much appreciated! Thanks in advance!!

Hey guys, hoping someone can identify this clear flat worm like creature I found in the back chamber of my Biocube. It hitchhiked from Tampa Bay Saltwater Live rock/sand. It looks like it has a skeleton structure, is extremely sensitive to light, as is super fast moving.

Have a few hitchhikers, some of which I’m (oddly?) excited about, feather dusters, bristle worms, possible spaghetti worms? But have a few more than I’m needing some ID on! Clear translucent tubes, Neon orange spots on multiple areas of rock, and the green plant looking algae? Also can’t...

Hi guys. My tank has been running about 3-4 years now. I haven’t seen these worms at all really. In the past few months their population has increased rapidly. Are they bad? I’ve had a few polyps die off on my LPS, but that could be from something else. Are these things bad? What are they?

Hard, tiny things all over zoas. They come off as strings when pulled. They do not seem to move at all. Among them was a small grub like animal that was ~2mm in diameter and had a see through body. It looked like a tiny shrimp, I could see two black eyes. Wasn't able to get picture. Also, red...

Does anyone know what this thing is? Should I be worried?

Hey guys, just recently started a 5g fluval all in one.(first saltwater attempt) it’s been running for nearly a month and a half. I’ve got this torch coral that was doing great for a while then started acting weird. Just not fully extending some polyps shrinking and becoming fat and stubby. I...