hitchhiker

Hey all, I just finished my weekly reef roid feeding and noticed my sand bed moving. Upon closer inspection I noticed all these tan little snails with their trunks up looking for any globs of food resting on the sand. I’m not too worried about any hitchhikers in my tank as I’ve already found a...

Hello! I bought some dry live rock and am in the process of fishless-cycling my tank. Today I just noticed this little guy and can’t quite seem to figure out what it is. A feather duster of some kind maybe? Hopefully nothing bad!! Thanks!

Saw this guy on my glass a bit ago, so I sucked him up with a small syringe and put him under my microscope. Sorry these arent the best photos, they were taken with my phone, I have a phone camera mount for my telescope but it doesnt work as well with the microscope, so I couldnt go any higher...

Hey everyone, I got a hitchhiker today. Not sure if he's reef safe or not? He's tiny at the moment. Any help would be greatly appreciated. Thanks

I just finished drip acclimating a huge RBTA. I dosed 2mL of Seachem Reef Dip in a bit over 750mL of water he was housed in. Once I did that, the little critter below jumped off of him and started going nuts - jumping in all directions like a flea. I included a photo of a Chinet plate with it in...

Hi All, We're in the process of moving all our corals from our nano to 100g (no live rock), while checking/cleaning our one of our corals it accidentally broke where the skeleton had died (we've been nursing it back to health) in doing so it revealed the frag plug below which low and behold had...

Hello everyone! This is my first time on a reefing forum. I made an account because I can’t find any information regarding what’s going on in my tank. 32 gallon LED Biocube All levels are completely fine and the tank is doing great other then the literal 2 - 300 slugs that seemed to develop...

For some time now there have been these small, white, opaque growths on my rocks. Some are as small as 2mm long and as thin as hair, whereas the bigger ones are often twisted (maybe 2cm) and as thick as 1-2mm. My tank is rather old, so they must have stuck around for a year or two without being...

Hello! I added 6 Zoa frags yesterday and dipped them all in "The Dip" from Fauna Marin before putting them in my tank. I noticed something on one frag, I think it's some kind of sponge? Today, all, except the frag with the "sponge" are partly or even fully open. Can someone tell me if it is...

Hey all - So I’ve had this rainbow BTA in my tank for around a year. After a while, one instantaneously became three, which are all now pretty much dominating space in my tank. Today I noticed one moved from it’s preferred spot. I was doing some maintenance and saw this in it’s old spot...

Hi all, I recently bought a new Acan and today I've noticed these arms growing off it that look similar to a colourless Zoa or Duncan head. One of them seems to have detached from the Acan and growing out of a hole in the live rock. I've never noticed anything like this on my other Acan that...

Please help!!! My boyfriend and I have just spotted these tiny tiny white spots in our tank! They kinda look like worms? THEY. ARE. EVERYWHERE. Can anybody try and identify these things?? *the picture isn’t the best quality, i apologize for that * Also, excuse the algae! *any tips on...

I found a nice piece of live rock with some copper banded coral on it. The guy at the store thought it was some rare sponge with an N name but he couldn't remember.

All of my zoanthid frags starting disappearing over night and I noticed these snails a few days before I noticed my zoas gone. If anyone can ID them for me that would be much appreciated. Need to know if I need to completely wipe them out or not. Has anyone else had their zoas disappear within...

I woke up at about 2 am to enjoy my tank when the lights go off and there are hundreds of baby snails on the rocks and on the glass.. I also saw what looked like a baby urchin and some type of starfish. Can anyone help ID them?? I posted some pics. They’re not the best because they’re at night.

So yesterday I saw a Mantis Shrimp (I am assuming it was a mantis shrimp) pop out of the rocks. He must have been there for quite sometime as I haven't added in anything new for a while now. This would explain the mystery of my missing invertebrates (a few months ago my cleaner shrimp both...

Discovered this a couple weeks ago and been monitoring it. It was initially in the crevice of another rock for a few days, but moved to this area a few weeks ago and has been here ever since. Seems to be active during the day, and hides at night. The "arms" move away when touched by another tank...

Still as yet Unidentified purple live rock hitchhiker is translucent, reactive to light and danger from other creatures, will turn almost solid white when withdrawn near the entrance to its hole in the rock.

These guys have been in my tank for quite a while, kept meaning to get an ID and today finally getting around to it. Any idea what they can be? they are smooth, but not squishy. You can see them in the first part of the video on the rocks. Tank is about 7 weeks old in total now.

I was on the prowl for red macro algae and didn't ever notice this guy stuck to one of the pieces. Only when I put the pieces into the tank it felt squishy and I noticed something on it. Is it some kind of sponge? it can shrink down surprisingly small when it is touched, vents open and close...

Any advice would be appreciated? I can't seem to find any info about these guys online... Loads of them hiding in the rocks, purple-ish tentacles everywhere. And found this 7-legged critter also! They don't seem to be a problem?

I am almost positive it is a worm, it has a white head, and redish orange to yellow body. it darts around my tank like a mad man..it wiggles and darts.. it is about 1/2 inch long. in the video it looks all white. I am trying to get my daughter to video it in the solo cup she caught it in...

Can someone please tell me what this coral is, got it from a lfs. Also there’s these tentacle hitchhikers on the side of it. Should I try removing them? Are they harmful?

Hi all, This white mossy mass has slowly grown on my Duncan frag. Recently it has developed these cylindrical growths with little branches on it; there are a handful of those. In the attached picture I have circled the entire mass and am pointing to one of the growths. The closest ID I could...

I noticed recently that two frags of the exact same acropora were healthy one day, then completely white a few days later. I checked parameters and everything was stable. Al the other frags are fine. Then two days later another millepora in the same section of the frag tank experienced the same...