hitchhicker

These clear "tube" critters have almost completely taken over the rear chamber of my nano AIO. They're growing and attaching themselves to the glass, heater and temp probes. I've also started to notice them growing on the rock in the tank as well. They seem to soft tissue and not hard, they also...

Just saw large amphipods munching on my healthy zoas. These zoas are closed for 3 days. Other heads are declining. I think amphipods iritate them then eats them when they're stressed. How to eliminate amphipods? I'm currently on fallow period since my fishes died due to ich. Thanks!

Hi So just got some montipora setosa, it's been doing fine for a week. Today the polyps where mostly closed, and can't remember seeing this white on it before. It's very very small, is it a nudi baby?

Hello Everyone, I just put some blue hypnea in my tank and see I have a hitchhiker that I am not too positive what it is. could this be a worm possibly a baby Medusa worm or something else? Your guess is as good as mine so I appreciate any responses. I have nothing but live sand, some asterina...

Hey guys, I got a shipment from reef cleaners yesterday and a bunch of my Astrea and turbo snails have these mollusks attached to their shells. They seem to camouflage with each snail’s shell. My guess is limpets. Can anyone confirm?

I have a solid bristleworm population and this is definitely not one of them. It was out under regular lights on my rear intake. Any thoughts on what it is?

There is something semi transparent under one of my zoanthids, anybody know what it is

While i was feeding my tank, tonight i notcied this in the rocks. Im not sure if its a hermit crab or something else. Picture quality apology, it's from a video capture.

Hello fellow saltines, I just discovered these guys on a tiny dark section of my rock. It's dry rock. They are very tiny. In doing some searches I think they might be hydroids. If they are can I pull the rock and scrub them off. They're kind of pretty and quite hypnotic watching them with my...

Hey guys, got this on a piece of UC Aussie LR and cannot for the life of me ID it. It has a stony stem and looks almost like a blastomussa but then looks like a Duncan

Should I dip this thing? Or is it just a poop eating bristleworm?

I think/hoping its just a bristle worm, but the pictures I've looked up look a little different from this guy in my tank. This is the best video I have, hoping to get more evidence. Thoughts?

Small roundish soft thing sitting on a “nest” of tentacles similar to that of a nudibranch or bubble tip anemone, however they do not move freely and are stationed where they are, have not moved an inch in almost a week. I think Nudibranch is ruled out When I touch them they react and “extend”...

So uhm, I actually posted about this one the other day. But I now have clearer pictures of these tiny 'maroon / brown' crab hitchhikers. They are only ¾ to an inch in size and their 'shells' are full of bumps. I assume some of them are females because I can see them carrying black eggs...

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Found this little guy while dipping my newly bought Trachyphyllia. Can anyone confirm if this is gorilla crab or any other species? He is very small, body is ~5mm in diameter.

Found these critters in my tank today and I'm looking to get some info on them! The first is some sort of Starfish. I noticed it hanging around the other day and decided to leave it alone. Today I seen it on my new corals and decided to get it checked out. Hopefully it's nothing bad.. The...

Hi just noticed this little stuff on my hammer's skeleton, at first I thought it's some worm and tried to wipe it off but it's something hard that doesn't come off. Any idea what this may be ?

So I got a frag of zoanthid from an lfs and this is what is on one of the polyps, can someone identify it. It’s white and has triangle shape. The one polyp that is covered at the base doesn’t open like the others.

Hi! I bought several kg of indonesian live rock for a new reef tank built. The rock was awesome, it was just two days out of water, it was very clean (suggesting it was collected from relatively deep water) and it looked full of live. Among all the stuff I found (many crabs and worms arrived...

Hello, i just noticed this thing growing on the side of my frogspawn coral. It's soft and the striped mouths close when poked at. After some research, I think it might be a sea squirt but I've never seen one that looks like this so I was hoping someone else could help me identify it. Is it...

Anyone have experience with this stuff? About 3 days ago I noticed this white cobweb looking stuff growing on one area of a certain rock, since then it has spread to almost 1/3 of the rock. Started out real thin and loose, pretty unnoticeable, but all of a sudden it has started getting thicker...

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.

They look like limpets or chitons the size of pinheads, attached to my refugium’s glass pane, but they jitter and have pulsating appendages like isopods. What do you guys think? Below: location of pulsating appendages, circled in red.