hitch hicker

I left my house for 2 days and came back to my tank with these guys in here. Anyone know what these are? The video isn’t very clear but they look like baby shrimps. If this helps, I turned off the lights during those two days to try and get rid of some of my algae and see how they would respond...

Hi, This is my first time catching eggs on a new frag. I have a heavy euphyllia tank so makes me nervous and don’t have a hospital tank. I scrapped as much off as I could and dipped. No worms noticed. But there is 2 different kinds of eggs. Red and white. Should I keep dipping and scraping ...

Found this lil hitchhiker tonight, anyone actually know what kind of crab it is? And please don’t just say “how cute” or “I want one” Thank you!

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.

Noticing this thing growing in the tank out of nowhere. Not sure what it is?

I have absolutely no clue what these things are. They came on some LFS live rock, which I believe originated from the Indo-Pacific. They have no holes, feel quite tough, do not bend, and have small “tufts” on their spikes. They also do not appear to have grown since I introduced them a few weeks...

Can anyone ID this?

I've been sent a photo by a friend asking what sort of snail these are, he said he's been having some issues with hair algae recently and as it's dying back he's started to see these. Said the only snails in the tank are trochus and nasarius snails but these don't look like either of these so I...

Hello! Since some days ago I’ve noticed that there are some of this thin white worms attached to the glass, sometimes they hide on the sand and when they’re near the water flow they unnatach and float around the water in a crawled position. I leave a video and some photos to see if anyone knows...

So I’m new at this salt water thing and this is my first hammer. I noticed this “pineapple” shaped growth forming on the skeleton of my gold hammer. Anyone have any idea what this is or what it could be? Any input welcome. Thanks for helping a novice out (in advance)!

Wassup Reefers, Cleaning my sump today and found this little thing on my skimmer. I have only seen one once before in my tank a hand full of months ago and it was between a frag shelf and the glass. (which I got rid of) It looks almost like a vein or root that definitely gets larger over time...

I have this in my tank for a while and doesn’t seems to bother anything. lokks like some sort of anemone but unsure what is it. Help me ID this please

Hi everyone, I found these polyps sticking out of my rocks last night . Can’t tell if there zoas or palys. Also what breed would they be? Sorry for the bad pic there growing in an awkward spot lol.

Dipped some zoas and found an alarming number of these guys floating afterwards. Hoping they’re just another harmless inhabitant, but I’m looking forward to any answers/advice - 6 line wrasse is in QT and will be in the display in about 1 week.

I have no idea what this is but it looks scary af! It wasn’t in my actual tank, it was with some chaeto in another tank. the picture doesn’t do it any justice- this is when I pulled it out dead. It looks furry on its sides. Also when it was alive, it extended its body to look longer.

Ive only just noticed it today, the tank is only a couple months old. Please help identify, after browsing the web i still haven’t found anything like it haha, It’s only around an inch big and it looks like it has pores

It looks like it has teeth..

There was a living fish inside my mysis pack! I want to take care of the little guy if possible, but I have no idea what living conditions he needs. He's been in a fridge for who knows how long and somehow survived, so I guess it's cold water. Would it be ok in a reef tank? I tasted the water (...

Hello .. can you please ID whats on my mushroom frag plug .. is it vermetid snails or tube worm

I’ve been very overwhelmed with setting up a coral qt and I got to thinking— maybe the possibility of pests isn’t such a bad thing? Having the perfect “pest-free” tank with 100% assurance feels a bit....sterile. In a sick way, I kind of enjoy the slight possibility. Pest prevention practices...

Need some help identifying this thing. I recently have had a issue the past month with something eating my pally zoas. Could this be it??!?

Could anyone ID these eggs all over the base of this coral? / in other picture it looks like 2 antenna or worm or baby serpent star under the other coral? Any help appreciated! I only have LPS and Softies in this tank, no visible signs of flatworms on glass.

I’ve been seeing these all over my tank at night and there are quite a bit

Found these tiny critters under my algae scraper, not sure what they are. Does anyone know what they are? Hopefully you can see the video I posted with this.