hitch hicker

I have a Niger Trigger fish with a white spot. I’ve had him for 3 months now and he’s been in perfect health. The spot hasn’t multiplied or changed in size. It’s hard to tell in the photo but it looks fuzzy ish. No other fish has the spot and everyone has been eating. I don’t think it’s Ich, i’m...

These guys are all over my tank. I have looked everywhere and asked many people, and no one seems to know what these are. They seem more active at night and when trying to touch the tentacle it retracts. I know it is definitely not a bristle worm or vermitid. And I do not think these things...

I was able to catch a gorilla crab that came along as a hitchhiker on the some live rock I added to the tank. If anyone would like it for their sump or any other reason, let me know. It’s free. I’m located in southern York County, PA and could meet in the York, PA or Baltimore, MD areas.

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.

can somebody id this black stuff around the zoas for me

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.

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...

Had these guys start to takeover my tank anyone know what they are? They are about 2 inches and extend and retract their body to eat and have very small hairs on them like a bristle worm.

I just took my hammer off the drag plug it came with and noticed this on the side. Looks very soft but no idea what it is

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

I just got home from a trip and noticed some small black dots on a little frag I have. Does anyone recognize these? My first thought is a flatworm or something but I can hardly see them. I took it out and dipped it as soon as I saw it, but I'm considering if I should dip the rest of my frags. I...

So I have been trying James and othe kinda of euphillia and they all die I have other lps and sps doing good it’s only them I don’t know if it’s my parameters or a hitchhiker or fish.

So a few Months ago I purchased a Spider Decorator crab. The crab had an Anemone attached to its back. Unfortunately after a a month or so the crab decided to ditch the anemone and dress in hair algae instead (SMH lol). Well I didn’t know what happened to the Anemone until I saw it attached to...

Just noticed that one of my Turbo Snails has a Bivalve growing on it. Does anybody know what type of Bivalve it is?

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?

I’m looking for some recommendations as to how to rid my tank of these pests. After being told to let them run their course I’ve had no luck in them disappearing. They now cause my zooanthids to constantly shut. Have read that it’s due to their stinging nature. Looking for an invertebrate or a...

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?

ID what’s living inside the Acantho and how I can get rid of it. Bivalve clam? Burrowing clam? Is it a worm? how do I get rid of it.

Added the rock lastnight, found lots of arms sticking out of one of the rocks. The arms have white rings it looks like.

I need an ID on these hitchhiker corals and bacteria. I’m fairly new so I need to know whether they are reef safe and also how to exterminate if not Dark algae spots. Circular white spots all over main rock Small polyps above and around Aptasia anemone? Asterina starfish I’m waiting to...

Hi! I noticed a nasty lil worm thing moving, inching its way out of a hole in the rock. Obviously I was curious to see what the heck it was so I turned the tank light on and it shrunk back in the hole. I'm new to saltwater tank keeping so I just want to make sure this isn't a harmful parasite of...

I've got a 10 gallon frag tank that's been up and running for nearly 2 months now. Inside are just some basic softies: GSP, Eagle Eye ZoaK, Kenya Tree, and a few others. I added some new coral from my LFS a couple days ago and now this little blobish critter is cruising around my glass. I had...

This crab came in on an alvepora I got at the lfs today. tossed it in the sump for now. Is anyone able to ID for me? Thanks!