hitch hiker id

Okay. Got a lineup here. I’m not necessarily worried about anything but more curious than anything. All came from TBS live rock so just excited to see what came with it. Have no idea what this is, but it seems to be growing. Was just on the sand bed as debris from the live rock but then stopped...

Hello, I am quite new to the hobby and I’ve added another coral to my tank and I’ve noticed what looks like a worm attached to it. I can’t seem to find what it is, and wanted to know if it’s something I need to worry about. If someone could help ID? Thanks

Hello, I’m new to the hobby and have just got a new coral in my tank, I’ve noticed what looks like some kind of worm attached and wondered if anyone can help with ID? Can’t seem to find it anywhere, wanted to know if it’s something I need to worry about. Thanks

Never seen one quite like it anyone can ID it came in on live rock rubble it moves , it has two small holes on each end - it is soft and squishy like a slug / snail / anemone and I have seen it squirt once or twice - looking to figure what it is if NPS or a pest or a fish eater Also anyone...

Got my rubble rock from TBS today and there’s a couple things I don’t know what it is. Got it sitting in the fuge for awhile until I see everything on it. The picture with two circles has three longish clear tentacles coming out and feeling around, the other two pics I’m just wondering if it’s...

Hello all. Today I purchased my first lobo coral from my lfs. I didn’t notice it in the shop but just got it home gone through acclimation and a coral rx dip and I see this on the base. It’s green and a different colour to the lobo. It shows fluorescence under a UV light and appears to be either...

A couple weeks ago I added a half pound piece of live rock to my nano as an island for the mushroom I’m planning on adding. Today I noticed this really small thing that looks kind of like a polyp on the rock near a hole. Any idea what it could be? There’s also a similar looking one towards the...

Does anyone have an idea of what this is? It’s about 1cm long and moves very fast. Some type of flatworm? I recently received some TBS rubble for my sump.. just want to make sure this isn’t a bad critter.

Hello, can someone help me ID this hitchhikers

I’ve had my 130 gallon aquarium for like 2 months and I have only introduced 2 clownfish and a Bicolor Blenny. Some days ago I noticed some little snails in the tank and I think they are Cerith so they are good. But today I saw this thing and I don’t have idea what it is.. help!

Anybody know what these could be look like either some sort of filter feeder but I have no idea if it’s some kind of feather duster or what?? Thank yall!!!!

hi ! i’m new here and to marine aquarium keeping in general. I ordered some macro algae and the Ulva I ordered came with this lil guy and pieces of him all over it. just wanted to know if this is a bad, good, or neutral hitchhiker ?? any tips and advice is appreciated as well !!

Hello, I just received a cleanup crew shipment and in one of the bags with a whole mess of dwarf ceriths there was what looks to be an extremely small clam. It's no bigger than a centimeter and I'm wondering if anyone knows if it will get larger or remain small. I placed it in my sand bed...

Hi Folks, I’ve been meaning to throw this out there for a while. I searched but I’m not sure if I was a good describer of my critter. It’s adorable if it isn’t going to turn into a many-headed monster. I think I first saw this as one little star shaped polyp about 3 months after I set up my Evo...

Can anyone advise me on what this is? It was on the shell when I got the spiny astra snail and has almost doubled in size?

This guy just showed up in my 6 month old nano. Any ideas? It looks like a work with tons of stringy tentacles.

Curious if anyone has seen these sponges before. The large grayish white sponge is the same color as a pineapple sponge but much larger at 6” x 3” underside of rock. I acquired this rock from lfs. I saw what I thought was grey putty on the underside of rock and turned out to be this sponge. The...

Hi all, Can you please help identify this? Looks like a snail? Thank you.

The first one’s stump me the most they are like a bubble/egg casing about 3-4mm in size.

First and foremost, my Duncan is closed because my shrimp decided to walk on it as I wanted to take a picture. Otherwise, no idea what this is growing on the base, I saw it before but it’s been getting bigger and bigger. It looks like some kind of worm so I’m a bit confused.

Interesting perspective After noticing an “asterina” starfish (I actually believe the are a different species) population starting to grow in a 1.5 year old mixed reef - I kept a close eye on my 2 colonies of illuminati zoas (as I started to see the asterinas sitting on zoas) I was able to...

I just saw this little guy crawling throw the gravel bed, hes approx a quarter inch long, give or take, milky white, with 2 stubby white antennae that appear like extensions of the carapace. i have normal copepods and he doesn't look like any of them. Any help would be greatly appreciated.

Second worm I saw like this. Looks almost like a bristle worm but it’s not a bristle worm. Anyone know what it is? I attached the video link below.

Found white cleaning out algae reactor, what do you guys think? Got him in a bucket rn . Aside from amphipods it was the only thing that stood out in the reactor

I got my first batch of coral frags on Tuesday. I dipped them using CoralRx put them on new frag plugs and put them in a QT tank. I noticed what looked like little white hairs or tentacles on the stony base/skeleton of one of the acan frags. I took some pictures to post to ask if this was normal...