id help

My lfs had this guy labeled as a tiger watchman goby but it looks NOTHING like any goby I've seen. edit: more pictures further down the thread

hello everyone! i am once again asking for help to identify another creature moving in the shadows. I've gotten the best footage of the Thing that i can with my phone camera and for the time being there isn't really a visible tube, but it could very well still be a worm of some kind.

I need help identifying this worm lookin thing. this is the first one of it's colouration and size i've found since i got my live rock over a month ago. based on the fact that i can see bristles on it, I'm assuming it's a type of bristle worm and not a planaria. my issue is trying to figure out...

Hello everybody! I've got these little thingies on my live rock and I'm not sure what they are. they haven't really spread at all, nothing else in my tank seems bothered by them in the slightest (my peppermint are quite content to march right over the tops of them), and they've been there for...

hello everyone! I found 2 little crabs in my tank today. one is pale white and red, so i'm 80% sure that one is a porcelain crab of some sort, but he's too skittish to get a photo of :( the other crab is a bit bigger and he's the one I'm worried about. he hasn't got the black-tipped claws of a...

Not sure if this is a parasite or simply part of the snail’s anatomy that I’ve never noticed, but I just spotted these white hairlike protrusions on an astrea snail. There are a couple different structures I can’t identify - some look like they’re in a semi circle and seem to be ant regular...

As the thread title says, I’m 90% sure this is aptasia growing on my monti frag plug. I did not notice it early because the frag and plug were sitting on another section of the tank and the light was too high so it started bleaching. I moved the plug this afternoon and noticed this guy...

I messed up. I should have bought the quarantined trochus snails from algae barn. My fish store had some in so I purchased them. I noticed they had little bits of hair algae growing on them but weren’t too bad. Anyway, I mistook some hitchhikers for part of their shells. They created a tube...

Over the last couple of months what appear to be little purpleish almost fuzzy looking spheres have started popping up on my rocks. They don’t scrub off easily, I’ve taken a toothbrush to them to see and it doesn’t really seem to have any effect on them. They don’t seem to be causing issues, but...

Guys!!! It’s been months! But I finally got a decent video of that darn work thing that’s always poking out the rock at night!!! It always comes from the same spot and seems to eat the left over food which is great! I am terrified that it’s going to take out some live stock though! Any ideas...

Hey y'all, was at my LFS and saw this little dude in a box with Trimma gobies. The guy told me what it was called, but I can't seem to remember the exact name. If I recall, he called it something along the lines of a "banded cave goby" but I can't find any info on it using that name. It's the...

Hello everyone! This is my first post, I decided to reach out and see if anyone can help my ID what is growing on the base of my torch? It has been slowly getting larger for the last 6months or so, now I am noticing a little bit of color loss in the torch and I’m worried this could be the root...

Hey all, created an account just to ask this. A few weeks ago I bought some urchins from my local fish store; The owner referred to them as "Spiny Urchins" informally, with the actual label on the tank being "Long-Spine Urchins (Diadema spp.)." They had red and greenish-black color variations...

Does anybody have any idea what that white stuff is growing on my frogspawn? Should I be worried? I’ve had it for about a month and a half and it seems to be doing great and it’s growing too. The stuff looks and feels like thread..

Hi, Would anyone be able to identify this species? It’s motile, green, and oval shaped. I cultured it in standard salinity saltwater. Other than that, I only have a Chinese name 扁藻. Sorry for the poor quality microscopy. Thanks, Adam

Hi all. Long time lurker, first time caller. Can anyone help point me in the right direction in ID ING the items in the pictures. All of these are currently in my QT tank. Seems like 2 odd things growing of my Favia and some stuff on my hammer. Any help is appreciated.

This was sold to me as a gbta but now I’m starting to wonder if maybe it’s something else. It has been the same color since I got it and it has not moved since it’s been in the tank. All of my water parameters are where they should be. It’s been in the tank for almost 1 month. I use an LED...

Hi anyone know what this could be growing on my rock…. Defiantly getting bigger. Cheers

Hey guys, so this thing is stuck on the inside of my tank’s glass. I have no clue where it came from and I have never seen it until just now, today. It moves with the flow of the water, but it doesn’t move locations. It’s just stuck in one place. Please someone tell me what this is, because I...

I have no idea what this thing is, i just noticed it on my frag, i dipped the frag before hand as i do with all drags but???? It’s creepy and I’m not sure if i should be worried. I tried to get a good picture of it but the lighting is kind of temperamental sorry.

Anybody have a clue what this long black tube thing is living in my live rock? Saw a clear looking one aswell

Can someone help ID this clam. I have 3 others 2 maxima and 1 Darsa but mantles look nothing like this one. If you zoom in the bumps on the mantle have an opening and look like mini bi valves

Can anyone I’d what’s growing in hermits back?….. looks like worm or brittle star….. there’s very fine fur coming of them

I just noticed white spots on the rock and snail right by the rock? I’m assuming some type of egg but i don’t really know? It’s just in that spot i haven’t seen it anywhere else in the tank.

Hey everyone! So I have this freshwater tank that I've been taking care of for about 5 months now, which I inherited from former club members (tank is school property, I just do the feedings and maintenance). It has had a green hair algae problem for years now, but we manage it with weekly...