identification requested

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...

could anyone help me figure out if this chalice coral would extend sweeper tentacles? We have a spot perfect for it and we’re willing to move the hammer and zoas but the sps corals above the spot have attached to the rocks already

I recently added a porcelain crab to my nano, and I read that some species host in nems and some don’t. Can anyone ID him and tell me if he’s one that would prefer a nem in the future? I’m worried that if he is an anemone crab then he and my clowns will fight over it. I also know he’s a filter...

Part 2 of Tampa Bay Saltwater @LiverockRocks came in today loaded with hitchhikers, critters, and freebies! Please help with the following

Brought a handful of ocean sand to seed my new small 5 Gallon tank. Intentional. Wanted to experiment in a small tank with ocean sand/seeding. Saw these guys running around. Does anyone know what these are? I am planning to set up the tank as an exclusive nem tank. So in essence they will be...

So I got this hairy mushroom coral about a week ago and noticed a few feather duster looking things on it. Except I’m worried they might be aipstasia. There’s about 3 of them from what I can see. I dip all my corals but know feather dusters sometimes survive and aiptasia definitely will survive...

Hey everyone. I've been scratching my head about this for a while and can't seem to figure it out. I inherited a bunch of live rock a while back, as well as chunks of what look like stony coral skeletons. One of the skeletons looks like a perfect mushroom shape. Like, land mushroom shape lol. It...

I purchased what was sold to me as a Carpenter Flasher Wrasse almost a year and an half ago. It originally had deeper colors with almost a purple hue and blue lines that don’t show well in the picture. It also had a longer dorsal fin. Once acclimated the colors pretty much faded away to what it...

Can anybody help me identify what’s hanging out on this coral in the front? I just got it in. I know the one piece is bubble algae and I should just take it off but what’s the other stuff? Thank you!

Anyone know what the little stars are?

This orange stuff appeared in a new tank (1 month) overnight. It looks almost like something was dropped in the tank but it is pretty secure and we wouldn't have made a mistake like that without noticing. It is right under where the urchin has been sitting so maybe its related? The copepods seem...

Buddy of mine gave me a monti frag , he thinks its a detonation monti. Anyone with more experience can give some input? Its my first sps and first time dipping into sps after being nervous about it for so long. It looks red and dark green polyps to me.

First time posting, I hope this is the correct sub forum. I found this little hitchhiker hiding in my GSP rock. Today it was snacking on my hammer so definitely not friendly. Can anyone ID it, please? It's not a gorilla crab, and someone on Reddit said it's a Calico crab. I'm in Southeast...

Hi All, Today I pulled out the stock media shelf in my BioCube 32. I bought the InTank media basket to replace it. I was very startled to see all the creatures attached to the shelf I removed! There were a lot of pineapple sponges. And some other creatures?? They almost look like unhatched...

I got these guys all 50% off from my LFS and have a vague idea of the types but wanted to get confirmation from more experienced people! Also, for those who ID them, could I get some advice on placement/care? My ID’s: Front (green, metallic/stripy): green leptoseris Left (red with lavender...

Hi there, I seem to be having a slight bloom of algae in my tank. It looks red in my tank which makes me believe it’s cyano but it’s not like slimy, more like hair algae. I have included a picture of the algae under the microscope and what it looks like under white light. Let me know if anyone...

Hey Everyone! I came back from a vacation to notice what looks like a bunch of dragonflys swimming around in one of my tisbe cultures. They swim around in pairs like mandarins with little 'wings' on their backs. I'll try to get better pictures and videos when I'm home later. Any idea what...

Hello! I've recently purchased a coral which I removed from its plug. saw a small dot and thought no big deal, 3 months later it's a bunch of tiny mushrooms alongside feather dusters. I was told it's a expensive mushroom such rodactus, it's an anenome, and the such. does anyone know what this...

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...

In person it looks like a white blob with little spiky looking extrusions. assuming its a sponge? I've noticed it not filling out as much as usual. TIA!!

I am having issues battling dinos and I finally got them under a microscope. Think they may be Prorocentrum? Need some help identifying and treating because I really don't want to break down the tank and I cannot remove sand bed because I have wrasses. Equipment: Red Sea Reefer S1000 G2 ~265...

I have a few critters to ID and I hope none of them are bad. I have supplied a slew of pictures, with no clear meaning or direction. 1. I have a few clear/gray blob things around my tank that are just popping up and I’m not sure what they are. 2. I have a few root-like structures around the...

Hey guys this guy was a hitchhiker on one of my feather dusters. It appears to be a type of mushroom but I'm not entirely sure. It was attached to a very small pebble so i glued it to a frag rock. Base color is a blue-ishbrown with green tips. Any info will be appreciated, Thanks

Can anyone identify what this new brown substance is growing between the heads of this blasto? Recently started feeding heavier to increase nutrients for my SPS which were losing color. I've been seeing more algae and Dino growth, but this is new. 200 gallon mixed reef Live rock is 2 years...

I was at a local aquarium fish market a while ago and saw a super interesting type of "dragonet" as the person in the shop said, although they call anything they don't know what is a dragonet. It looked almost like a puffer fish mixed with a mandarin? It had the size and complexity of a mandarin...