identifcation

Hi all, I'm having trouble IDing this coral with 100% certainty. It was sold to me as an acan, but I've had conflicting opinions come in afterwards from other reefers. I can't find anything online that resembles it, but maybe I'm not looking in the right places. Any help is appreciated.

At work today we had a crab come in that nobody can identify. We got it in a batch of emerald crabs, and it was labeled as a black emerald crab despite it not being one. Any ideas what it could be?

This is the sump of my tank, it' about 8 months old. I put a little bit of rock from previous nano tank in here to bring pods in, etc. I was doing maintenance and noticed this stuff on the rock in the sump (it's behind my skimmer so I don't look back there much). I -think- it's a sponge? But...

Hi guys Couple days ago I bought this starfish, and then I added this zoas, science then the starfish is always on top of them, they look god, I am just a bit concerned about it eating them.

I saw one inside an old snail shell and tossed it but now I saw a bigger one on glass, has strange sweeper like tentacles on it.

Was doing maintenance and saw some new life in my sump I’m not familiar with. Not in the display yet, but starting to spread below! anyone have an idea what they are and if they’re good/bad or just ugly?

Went away for a week and came home to this completely taking over my sump. Protein skimmer working very hard. Used up half my reef mat in 3 days. It feels very slimy and comes apart quite easily. The consistency almost feels like slime around a piece of string, but the second you touch it, it...

I just came back from a week long vacation and found this stuff has completely taken over my sump. Any idea what it is and how to get rid of it?

Hi guys, recently been seeing these sold as “mini hammers”. Never really seen many till about 3 years ago. Even more common now coming out of bali and maricultured. They have rounder tips, smaller thinner skeletons. They definitely dont look like the normal hammers im used to seeing here in...

I just took my hammer off the drag plug it came with and noticed this on the side. Looks very soft but no idea what it is

Trying to confirm so I can get it the right placement and feeding if needed.

Came across this caulerpa species and I'm having trouble identifying it. Best guess is caulerpa racemosa var. cylindracea but it has a different shape than what I'm accustomed to. Any help is appreciated.

Just noticed that one of my Turbo Snails has a Bivalve growing on it. Does anybody know what type of Bivalve it is?

Just got home and noticed something growing on my halimeda. Kind of looks like broccoli or some type of eggs. Also it turned a weird yellow color and bleached a little bit.

Hello, I recently started noticing 2 small white centipede like “bugs” on the glass of my tank. They have antennaes, many “feet” like a centipede, move slowly, and are completely white. The bugs are very small but still bigger than pods. My tank has been fallow for 8 weeks now following a...

Hello everyone! About a week ago I purchased a Zoa frag. And I have noticed it’s more or less encrusting around the frag unlike the normal Zoas that I have seen and purchased. The picture will be posted below. But since putting it in the tank it seems to have some sort of algae hairs growing...

Hello everyone, I have a clear like thing that just grew on this live rock in my reef tank. It almost looks like a Venus fly trap.. can you help me identify what it could be?

I think this may be an anemone but I'm not sure. It started as one hitchhiker. And then there were three. When I transferred tanks I couldn't find the third as it was in the sand. Can someone tell me what this is?

Hey all! Need some help IDing a zoa I picked up at my local fish store. It caught my eye in the misc section for 29.99. It has a decent amount of heads on it too! Let me know what you think! PS: I don’t really care about names, but curious to hear what you think. I’ve been reefing for 15...

They seem to be pretty and harmless, I wonder if they are categorized as macro or not? How fast will they grow/reproduce and how large can they become? Thanks in advance!

Just got a Fiji Puffer today and put him in to my tank while I went to work. He sat in a breeding box with a net that I use to reduce aggression and let the fish check out the new fish before adding (all day). I came home, let him out and he swam into a cave but I noticed some sort of sore with...

found this little guy today by accident. Came along with my pretty mushroom rock. Any idea what it is? Think it will hurt my mushrooms?

Hi! Could someone please help me identify what this is? It’s in my sisters tank and I’m stumped! TIA

Hi all! (first post) I just received a Biocube 32, and after setting it up and adding live rock donated by a friend from his established tank, I have a question... A) Which side of this live rock is "up" (algae/green or not green)? B) Does it matter to the already living "things" (I have NO...

Hello! I run a 5 gallon PICO tank that until yesterday had no fish. I also feed phyto daily, so there has always been an abundance of wee beasties that have fascinated me. Most I've been able to identify (copepods, amphipods, munnid isopods, spinoid worms, spirorbid worms). However, there have...