hitchiker

Help ID this hitchhiker? My turbo snail was giving the Nero 5 a good cleaning and I notice the red glow coming from the shell. Looks like a feather duster but I’m not sure if that’s the actual name or if it’s actually some sort of tube worm.

I found these on the bottom of a ceramic plug rack that was on the sand. You can see a frag plug hole in one of the pictures. There seems to be a dark spot inside, it's not moving and one popped when I tried to flich it off

I got this sympodium plug from a LFS. Turns out it has this bright orange hitchiker. Looks kind of cool but I am wondering if it is good or bad. If it is good should I try to separate it from the sympodium so it stops getting stung?

Can anyone help me identify this? I tried to catch it, and I started swimming away like an anemone. I have a history of hydrates in my tank, but I got a file fish, and he seemed to have fixed the situation. I had to get rid of him because he was starting to eat my corals due to lack of hydroids...

Today I noticed a snail crawling around on top of my Astrea snails shell. He must’ve hitchhiked along with some corals maybe? Idk, but my online searches haven’t proved fruitful. Could anyone help ID this little guy and whether he’s good/bad?

Hey I've been fascinated by these worms for about a year now and I'm finally wanting to get serious about finding one or two (my best friend also loves them, we are going to name our worms Nyx and Styx from Greek mythology) I know that species ID can be a problem so if at all possible I would...

I put fish food pellets on the surface and these things came jetting to the top. What the heck are these? are they bad? Trying to get the video attached. sorry its blurry.

Hi guys I found this snail under my coral drag of torch and really worried if this is a sundial snail or not

I've had this film/tubey structure encasing this rock for at least a year now, and I'm beginning to get curious of what it is. When I removed the rock from the water when transferring tanks in July, the film felt slimey but did not readily brush off. It seems to be inflated almost like a halo...

I was brushing off an acan that is like 50% dead and I didn’t know why it was dying. All 4 other acans look fine. While brushing it off I noticed something shot out of it. Then landed on my rock. It was a worm of some sort so I used a turkey baster to suck it up and put it in one of my test...

there is a rockflower anemone hitchiker in the middle of that frag and I was wondering if there is a way I can get it out without hurting it? Sorry picture is bad this is my first post

I haven’t added any new rock or coral to my tank in months but today I noticed a bright yellow nudibranch about 2cm long moving across the back glass of my aquarium. The back of the tank is rarely cleaned so it wasn’t easy to photograph it through the algae buildup but here are the vest photos I...

So some background: Montipora are my favorite corals and thus I have stocked my tank full of all types of montiporas. More than half of my corals are montipora and they were all doing GREAT until a couple of weeks ago. My tank is a bit newer (a little less than a year) and so when two of my...

What is this???? About the size of a nickel Disappeared when I turned lights on.

Hey all, wanted to confirm that this was a collonista snail and not a sundial. Thanks for your input. Hope the image is okay.