identify

Hi, Put a new piece of rock in the tank recently and this thing has suddenly appeared at some point today. Anyone any ideas?? It looks as though it’s “breathing” in the video but I can’t be sure with it being on the power head. Every days a journey with a new reef tank

Came in on something I bought at a swap. Didn't notice until next day so I'm not sure what it was on.

Hey guys, New to the forum and to salt water aquariums. I have a ~6 month old tank and I keep battling algae that does not seem to want to go away no matter what I do. It looks like GHA, but I'm now wondering if it could be something else. My nitrate is 10ppm and my phosphate is 0.05ppm, so I...

What are they and do the pose any concern?

Caulerpa Verticillata maybe? If so, does anyone have tips on keeping it in check without it taking over (besides kill it)? It seems to be thriving even in brackish water.

Hey guys, I was just wondering if someone could help me identify this “hammer” coral. A lot of the heads on the polyps differ from others in many ways. Just wondering if anyone knows why or if it’s a specific hammer. Or I’m just dumb, that’s plausible too.

It's hard to tell because he has characteristics both would have, what's throwing me off is his tusk is a light blue, is this an aussie or indo?

My wife purchased me a very pretty "mushroom coral" from a local fish store, my gut tells me its some kind of LPS but i'm quite new to corals and have just started getting beginner softies. I want to make sure this fella gets the proper care so any help and info would be much appreciated!

Can anyone please help me identify what I have growing throughout my reef tank? Are they going to become a problem? If so, does anyone know of a natural predator that would be reef safe?

It's been a while that these white dots started appearing. At first I thought they were copepods so I just let them be. But looks like they could be snail eggs or something. I have astrea and trochus snails, bristleworms, lots of copepods and amphipods in the tank so could be one of those...

Looking for any input on what this glass clinger is. Not sure if it is a trail remnant or a “live” thing? Such an odd skeletal shape. It just appeared one day on the glass (three days ago) and the same day my cleaner shrimp disappeared and hasn’t come back. The glass clinger hasn’t moved at all...

I got this anemone almost a week ago and it's been in my quarantine. I'm pretty sure it ate about 4 days ago. Sometimes it will completely deflate in the middle of the day and now it's doing this! What do I do? What's happening?

I'm quite new to the reef tank hobby. (About 6 months). Had my ups and downs with different Zoa colonies. In the image you can see a few Cats Eyes polyps and then that blue "thing" below them. It came with the frag and it was tiny when I got it. It is growing though. There is a similar center...

Can anyone id this clown for me? I would appreciate the help

Have this little guy in my QT. Can anyone please help me identify what kind of clown he is? Thank you guys so much!

Hi, I've been having trouble managing this algae ever since I added a new piece of live rock to the tank. It started growing on the rock and I've been trying to manage it by manual removal, but it just keeps growing back. It has spread into parts of the sand and has started to creep up onto the...

Hi, I bought a stone overgrown with Discosoma "superman" and this it was different between the individual polyps. Can you identify the species?I love mushroom corals and I would like to expand my collection. I've driven all of Google and never found anything like it. :-) Thank you.

https://www.reef2reef.com/threads/please-help-me-out-any-info-appreciated-very-much.895597/#post-9951997 Worst experience I’ve had in my 13/14 years of reef keeping. This has gone on for almost a full year. I recently set up a Red Sea reefer xl system and I am taking this old system down and...

New to the hobby but I've had my salt water aquarium with lots of live rock for 3 months now and i have something weird growing off the side of a rock. Looks like a coral but not sure at all. Could someone please help identify this for me?

Hi everyone, Just recently set up my first saltwater tank in a Biocube 16. I’m fascinated with the different life forms so I purchased live rock from the ocean at my lfs. Let’s hope I don’t regret it. The rock is teaming with life, and much of it I am still trying to identify. I am aware that I...

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, a relatively new reefer here. Got this from my LFS for $20. Is this a zoa or is this a paly? I have searched endless thread and ended up being even more confused.

Hi. I've noticed a few of these pests (I assume) on my live rock. Does anybody know what they are and if I should remove them? Thank you!

Hi i'm new to the hobby and i found someone who's willing to give me anemones but all i know is that they are bubble tip Need help identifying These 2 anemones

Pictures: 1. 40x 2. 400x w/about 3x phone zoom. 3. 400x w/phone zoom 4. 400x w/phone zoom Video's: 1. https://youtube.com/shorts/qaQsbLgK8aY?feature=share 2. https://youtube.com/shorts/atK1P4RrnsI?feature=share 3. https://youtube.com/shorts/ABMkETU_Rps?feature=share 4...