hitch hiker id

Pest Identification! Currently in QT. Purchased a small rock yesterday from a reefer with a couple of shrooms and so far have removed Asterina stars, I see small snails, flat worms of some sort, and a long white Nudi or worm of some sort with a spade shaped head. I’m planning on a Bayer dip...

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...

Can’t figure out what these guys are, they are starting to pop up in some frags that use to be clean. Don’t want to dip them again unless I have to, as I just changed the light spectrum that kind of made my tank mad at me these last couple of days (wanted less blue)

I was cleaning my coral with hydrogen peroxide solution and 2 worms dropped from the holes. I don't know if it is a bristle worm which became fat due to hydrogen peroxide or it is my nightmare: a fireworm. If these are fireworms are there any easy hacks to get rid of them.

My clove polyp wasn’t happy so I chose to move it. Before doing so though, I dipped it and this fell of the coral in the dip. And idea what it might be?

^ 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 this guy on a small chunk of liverock I just added to my nano tank last night. Is this an aiptasia? I've already removed the rock it is on from the tank just in case, but if it isn't aiptasia I'd like to add it back since that stuff is expensive. I don't usually use live rock so I'm...

At least three of these guys managed to hitchhike into my new nano tank on live rock. I will try to get better pictures tomorrow when the lights are back on, but they look like oyster drills to me. As far as I know, oyster drills are on the Atlantic side of FL and the rock came from the gulf...

It started at the base and has grown up the polyp and is now spreading outwards. I posted it last week but the picture was not the best so I am trying again with some better pictures. The frag was dipped before it went into the tank. If anyone knows what it is and what I should do please let me...

These little white-gray friends are spreading rapidly through the rocks. They dont look like they move (aka dont look like barnacles) and are a bit see-through. Some of the corals that are in contact with these are a bit angry. Anyone know what it is and how to get rid of it?

Hey everybody I was hoping for some help in identifying these worms in my tank. If anyone could help I would greatly appreciate it! This is the best picture I could get. The worm seems to have a white dot near its neck and a white dot on its tail.

. White object under my rock fluffy looking

Hi everyone I am new here and tried to find a picture of this hitchhiker that came in on one of the corals I currently got but could not find anything. It looks like a baby tuxedo urchin? But I thought I would ask to see if anyone here knew for sure just go be safe. Not sure if it’s good or bad.

Hey everyone, Looking to see if anyone has a clue of what this might be. I have quite a few on different rocks in my tank. I’ve researched as much as I could and found nothing. Thanks!

Algae problem causes me to suffer after past 6 months and finally found out is my light is too long after chit chatting with in a fish shop. Anyway, recently the tank suddenly appeared many kinds of hitchhikers: a kind of algae,Vermetid Snail, one or two fireworms (At least looks like, it has...

Trying to figure out what this is. I thinks it's a feather worm of some sort but can't find anything online that looks and moves like this

Can someone identify what coral is growing right under the leather? It looks like Xenia. If thats what it is, I need to figure out a way to get rid of it. It showed up on the base of this coral that I got.

I got these Fuzzy white polyp-like inverts that has started to grow on my reef rock They kinda look like hydroids or miniture soft corals Just want to comfirm if they may be anything bad or i should just leave it

Purchased some live rock from KP aquatics about 3 weeks ago and was trying to spot and catch a possible gorilla crab but I found this instead. I think it is a fire worm but not sure as it could maybe be a bristle worm too. Anyone have any ideas? Sorry for the loud noise in the video it is the...

I found these in the shells I got from my lfs. I’m not sure if there are more in my fish tank. I found three. Should I be worried?

Hello Everyone, So I am currently concerned but not too concerned about these weird pests that I have found living on my Zoa Coral. I am not sure exactly what they are but I would like to figure that out sooner then later. This way I can take care of it if needed. So far from what I have...

I found this growing on my green star polyps. Need help

I've noticed alot of these small red sea slugs all over my tank recently (they look yellow under the microscope, red to my eyes) anyone know what they are? I've attached pictures taken under 50x magnification any input would be great! Thank you!

Hello, I recently started noticing 2 small white centipede like “bugs” on the glass of my tank. They have antennaes, many “feet” like a centipede, move slowly, and are completely white. The bugs are very small but still bigger than pods. My tank has been fallow for 8 weeks now following a...

I currently have this mussel looking thing growing in the glass of my tank. I’ve never had anyone before. Is this safe to leave in my tank? Will it become invasive?