help id

Hello, I bought these corals awhile ago. I believe the green one is a chalice and the orange/purple is an Acan E, but I just want to be totally sure. The green one has grown since I bought it but the orange one seems to grow much slower. Any advice is appreciated, and sorry for bad picture...

Please help me identify. I'm very new with this. Thinking it could be a sea slug

Hello, I spotted something growing in my tank a roughly a week ago and didn't really think much of it. And today I noticed it has slightly increased in size (it's now ~0.5cm). It looks like it could be an anemone maybe. It's clear/pale brown with some fluro yellow/green balls on the tips of the...

So I’m recently returning to the reef tank world after a 15 year break. I’ve been a fan of R2R for months now and have just been hesitant to make an account for what ever reason until now. Saltwater is not new to me but keeping corals is, since I previously only kept anemones. I love the way the...

there may be 2 but this came off a soft coral related to finger corals... perfect reason why people should check before adding like i did. not sure if these are good or bad hitchhikers but surely something

Couple of questions please...woke up to find 3 of these bristle ? worms cruising around my unlit tank. I'd just like to say I MAY NEVER STICK MY HAND IN MY TANK AGAIN. 2 of the worms looked like greyish-tannish nondescript bristle worms but this one looked different...is it a fire worm...

Have been quickly growing this algae, at first I thought Dino’s but know I’m not sure, one thought is Lyngbya Cyano. The tank is 2 months old. Tank is IM 20 Upgraded IM pump (500gph) Aqamai KPS (running 50%) 2 Prime HD Ghost skimmer Refugium in 2nd chamber Chaeto +pods 2 intank baskets running...

Hey guys, I've noticed this brown film type thing growing on my Northern Lights montipora. Wondering if anyone could ID this and tell me if there's any way to treat it. It doesn't seem to be spreading terribly fast and the coral doesn't seem too affected. Its polyps are still out and there is...

Frag was listed as long tentacled xenia but ive never heard of it so i googled it and nothing came up either looking like the one in the pic. Anyone know what kind of xenia it is or is it even a xenia

Looking for an ID on a hitchhiker crab from my TBS liverock from Florida Maroon Crab with white bands on legs, sharp looking claws, no hair on his body/legs at all. looks like black tips to the claws, but looks totally different from the stereotypical gorilla crabs I've found so far. Sorry...

About 2 weeks ago i noticed i had some cyano bacteria, so i ordered chemiclean and that took care of things. Then last sunday i noticed some more (or so i thought) coming up so i treated it with chemiclean again. The first time it was cyano but this time im not sure. Ive asked a friend and he...

Are these tiny anemones? EAch about 1/2 cm to 1 cm, looks like tentacles around a central base/mouth? Haven't seen them move, and don't think they look like the aiptasia I've seen (they don't have a stalk -- just tentacles & base). they're clear with sort of white speckling. Hope that makes...

This is the best picture I can get -- these are thin, brittle but hard shelves growing out primarily from this location. I have some LR near it that has some established blue coralline (can't get a good picture that isn't washed out from the whites). Please bear with my poor picture...

From TBS Live Rock -- sort of flat top/bottom & attaches to glass. What is it? Reef safe? or Remove? Thank you!!!

So am brand new to salt water tanks and I got some live rock. Can anyone tell what is the organism that is located right under the clownfish and if its good or bad? Thank you https://imgur.com/S5jpOa2

anyone up for round 2 of Good Crab/Bad Crab from TBS live rock (so Gulf of Mexico)? 1/2cm long

Just found this guy on the outside of my skimmer. He's from TBS Live Rock, so Gulf of Mexico. About 1cm, translucent-ish, pale cream/tan with crazy spikes & antenna. WHAT IS THIS?!?

Every time I look at the tank long enough I find someone new, leading to the fun "Keep me / Remove me" question. Any ideas on IDs for these guys? Each is about 1 cm.

I have found several of these snails in my TBS live rock shipment -- from 1/2 cm to 1 cm maybe? These are whelks, because of the "trunk," right? As in BAD snails to remove since they can harm other crustacean shells? Thank you!

Hi guys, so I’ve noticed this dark patches on my dry rocks lately but today hey turned black! Please help ID