critter id

Hi all. Just seen this and cant find anything that looks similar. Has a deep pink body/mouth and tentacles with balls on the end. Bets photos i can get are attached.

Found these guys hanging in the corner of my tank only a few hours after the lights went off. I rushed home last night from a different town to look at my tank at home after learning about copepods. And sure enough I see these guys doing a business meeting in my tank!! I know there are different...

I noticed these guys the other day on a piece of rock. They sort of look like GSP but they don’t have the purple crust like GSP and they are more white with a very light hint of green on the tips of the tentacles I do have GSP in my tank and they are sort of similar to the smaller ones I can...

Been trying to ID this worm on the side of a rescue coral. It is a hard shell with the mouth on the left side. I think the coral is a torch, but still recovering. The coral has white milky stuff coming off every few days.

Hey all, assuming this torch is fine but curious as to what this is, not sure if it caught some food and is eating or if irritated, hasn't been retracted lately and all water params are in my standard range. Just curious to know if this can be identified.. TIA!

I was watching my rock flower nems (because I keep hoping for spawning) and saw this thing, i thought it was one of my brittle starfish at first, but you can see one of the starfish legs above it so I know it's not that. Plus it moved like a worm? And like folded into itself, also it almost...

Hi I need help identifying this bug? Please help

I just noticed today that they are on my front glass. The one I took a picture of is just so big. I don't know what it is.

Black sponge like object on my zoa rock could someone tell me what it is and if it’s bad for my tank

Hi everyone! I received my first ever corals the other day. I dipped them in Coral RX and also hydrogen peroxide to remove some algae. I’ve been watching them constantly on a frag rack to make sure there’s no nasty critters or aiptasia before fixing them into the tank. Today I’ve noticed...

My tank in the last few days has been getting these tiny tan-brown ish circular creatures on the glass… they don’t really move, just sit there with their appendages or whatever flowing in the current… are they harmful? Does anyone know what they are? I can’t find anything and don’t even know...

Looks like mojano to me but want to make sure as it is next to a ricordea Yuma , can anyone help ID here are the best photos I could get it is very small right now

Hello All. New to the hobby and the tank is new (3-4 months Old now) i was just sitting there checking everything over and noticed this bug with wings sat in my return pump section of the sump. To me it looks like a fly as it looks like it has wings but it is submerged under the water and has...

Hello all, I've got an amphipod population that I impulsively added to my new tank from my old tank. I was focusing on the biodiversity in the new tank before thinking about the fact I might be transferring a pest. Can anyone help identify what type of amphipod this is? I am concerned...

This is Eugene. I collected him in South Florida back in June on the Atlantic side while on a weekend trip down there. He started off super small (smaller than a blue legged hermit crab) but is growing far faster than any other hermit crab I've ever had. He spends all day cleaning the sand bed...

Saw a bunch of these egg-like fellas wiggling on the top part of my cerith snail. I just treated it like it was an invasive parasite; they easily came off the snail when I isolated it and blew some water over it. But I’m curious, what were these critters?

Hey guys & gals , happy weekend, hope everyone is doing ok Recently found this growing underneath one of my scolymia, appears to be some sort of sponge / truncate but wanted to post photos just to make sure it’s not something more invasive which warrants removal Here is a photo (attached) the...

I set up a new 40 gallon breeder about 3 months ago. Recently added a cleanup crew with a few snails, some hermit crabs and a couple of tiger conch (though the person that sold them to me told me they were turbo snails). I did some cleaning today and had to pull a few rocks out and scrubbed...

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.

Hello Everyone This is a thread to hopefully finally figure out what these strange worms are. These have appeared in many threads in the past several years but so far we have no true ID , as it seems they are becoming more prevalent in our systems , I thought I would put together one final...

has anyone seen these and figured out what they are? they are all over my rocks, favia/favities,but not really on my side, back or front glass.

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...

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 found this on my tank today. Anyone happen to know what it is?