identification

Tank is a couple months old, nothing new added. Parameters are fine, and only new addition in the last couple weeks is adding a power head. We woke up this morning and noticed this on all sides of the tank and nothing we can think of comes up in a search. We’re still pretty knew to the weird...

Hey all, Purchased a Firefish from a LFS 3 weeks ago, has been healthy and showing no signs of disease. Last night however, I noticed that his tail fin is starting to tear? This must have occurred within the last 24hrs as I havent noticed it before. Is this an early sign of some sort of disease...

This white branching algae (almost helpfully displayed on the old frag plug) has popped up in my tank in a few places. I wasn't too concerned about it at first, but it seems to be irritating my zoas and ricordea. None of my CUC seem interested in eating it. Any idea what it is? TIA.

So this fellas is growing....fast. Like in a couple days double in size and showed up from nowhere. Any ideas? Growing on an Acan skeleton.

Lots of fun surprises tonight while cleaning the back glass, lol. I've been leaving it alone for a few weeks because I didn't want to bother the frag racks but it was time. Just got this adorable Frammer 2 weeks ago and it didn't have these. I don't think it's Spirorbid Worms but I'm not...

I'm a little confused about the names of corals. Please help me figure it out. The first question concerns the briareum and clavularia. How to distinguish them and who is who? The second question relates to the clavularia. Do I understand correctly that both of these corals belong to the genus...

Never seen or heard of this issue before. My Red Sea gravity ATO basin just spawned all these weird squiggly worms. See video The new action I did - which shouldn’t make a difference - was use a measuring cup laced with vodka to gather water for my carbon dosing recipe. Any ideas on what...

Got this macro from my LFS but never asked about the name, any ideas?

My the place I live does a "city wide clean up" where people throw whatever to the curb and then a truck comes and takes it. This provides numerous opportunities to find unique things that people just toss. TVs, cabinets, instruments, and in my case a fish tank. My problem is I have no idea...

Found this guy in a lfs. Looks like a ton of baby lps heads but apparently it was encrusting a rock. The person working told me it could be a goniopora but I would like to know what you all think.

Hey everyone, my aquarium is about 1 year old, this thing growing on the glass since the last month or so. it would be great help if you could help me ID it. in the video in the last 20 sec, it is a bit blurry sorry, It is shot with a magnifying glass since it is so tiny. thanks

Hi R2R Team, I've been battling a nuisance algae for a little bit now. I initially thought it was bryopsis but have tried fluconazole with no luck. I have tried manual removal which will remove the amount initially but always comes back. I have also implemented reduced feeding by reducing total...

I just got home from a trip and noticed some small black dots on a little frag I have. Does anyone recognize these? My first thought is a flatworm or something but I can hardly see them. I took it out and dipped it as soon as I saw it, but I'm considering if I should dip the rest of my frags. I...

Hi guys, Got this cleaner wrasse yesterday from lfs, and I'm not sure if it's a false or true cleaner wrasse. So far it cleans some of my tangs and blenny. My mimic tang however does not like him and does not let him clean him. I tried to get a few photos or cropped screenshots from video...

I've caused some controversy over on reddit, trying to get some advice on why the head on one of my corals died. Instead of that, its turned into a large ID debate lol. This was sold to me as a Galaxea, but many are saying its a torch. If it is, it was definitely not priced as one ($15)...

Need help identifying what this is on/happening to my frag. Parameters are ph 8.2, temp 25.5 c, 1.025 salinity, 430 calcium.

Need some help identifying. Thanks in advance.

Hi guys, got this extra coral as a freebie in a recent order, but it isn’t one that I recognize. Any ideas on what this is? I took one picture under blue light and another with the orange filter lens for better color accuracy. Thanks I’m advance!!

Hello, this is a 13 gallon 2.5 year old tank… only pest I have that I know of are bristle worms however I just noticed this attached to the plug of a bird nest coral. Would this be aptasia? And if so how do you recommend I take care of it, the coral isent doing so well so maybe take the whole...

it wasn’t this big when i got it. it just kept growing more and more till it got to this size. and to be completely honest, i kind of like it and would probs prefer it to be on its own with no zoas.

I woke up this morning to find half a dozen of these guys (various sizes) on my glass today. There was also one floating around in the water - a clownfish took a bite, then spit it out. The crazy thing is that I haven't added anything new (aside from RODI water) to the tank in four or five...

I had only turned on the lights to try for a better picture. Only one rock and back glass seem to have hair. The rest of the rocks are just greenish.

I’ve been battling amphidinium dinoflagellates for a while now and just noticed some small round bug-like creatures running around on the Dino’s, I’ve never observed anything like this, they move quite quickly but not like copepods do, any ideas?

I was sitting at my desk last night and saw this little crab crawling pet of my live rock and I did some research and I looked like it might be a baby teddy bear crab? I am not sure and would appreciate some help in identifying him. Also is this a good or bad hitchhiker? (I know it’s hard to...

Hi guys just picked up this little guy this afternoon and was labelled as a percula, I have my doubts and am thinking that it could be a ocellaris. I liked him because of the unusual broken stripe in the middle so am happy with my purchase either way but just interested on what you guys think.