id help

I have absolutely no clue what these things are. They came on some LFS live rock, which I believe originated from the Indo-Pacific. They have no holes, feel quite tough, do not bend, and have small “tufts” on their spikes. They also do not appear to have grown since I introduced them a few weeks...

Weird mushroom looking things. Theyve been growing in that spot for a while. Not sure if bad or good or neutral?

I have a swarm of free swimming little white bugs in my tank and it’s tripping me out. They look like little white shrimp but hang upside down like mosquito larvae. Are they some type of pod? Or do I have a problem?

So today a cobweb like fluff has appeared I am unsure whether it is good or bad. I have trochus snails which have bred before which is a possibility. I have a pair of clowns, lawnmower blenny and Diamondback goby. I did have a big conch and nassarus snails but they never come out I don't know if...

What in the world is this it is atached to the rock but it is soft and weird looking inside the bludgeoned it looks like sand or eggs or something no idea what I’m earth this is really worried what I should do right now please help I’d this stuff

Pics below

Hello all .. so today bought a new wellsophyllia and i dip it in coral Rx pro .. nonetheless, after i add it it the tank i noticed its moving so i flip it .. and found this guy .. is there an ID .. good or bad? Looks like a snail. Please refer to the video

I I have two clam like hitchhikers on one of my snails. I thought it was a piece of super glue at 1st. But today I noticed them opening and closing when a fish got close to the snail. And they have balck lines on them. you csn see them in the pictures. What is it and is it dangerous?

Happy Super Bowl Sunday! I was getting through some weekend maintenance before the big game and noticed this black object embedded in some Zoas. Didn’t think much of it until I noticed it had little antennas. I’ve never seen a black worm/slug like this before. Any thoughts?

Hello everyone, Happy New Year. I have been noticing this this algae in my tank and not sure what it is and how to get rid of it? Is there anything I can add like CUC to reduce that? Have attached images I currently have 2 Florida ceriths and 1 Nassarius snail. Any advice, help and...

Found this amazing little dude earlier, ive got a stomatella and this isnt him for sure. He isnt a lettuce as far as i know. Who may he be? Hes a very pleasant guest to have, hes caused no trouble and is quite the looker. Friendly and clean, i rate him a 10/10. Where can i get another? Bunch of...

I’ve noticed over the past few weeks these spores attaching to the dark and low flow areas of my tank. Specifically in the sump on the bottom portion of my skimmer and in the plumbing box up too in the DT. Should I be worried? Seem to be harmless thus far, but I’d like to get in front of it if...

So last week I saw a few of these on my rocks, and then upon doing a water change, looked in the back chamber of my aio and saw A TON OF THEM, cleaned a lot of them up and scraped/siphoned out, but I looked again tonight and there’s more- hopefully not a big pest- any ideas?

I have google searched and google searched and can’t find anything that looks like this! Anyone have any idea what it could be? Notes: - Growing in a cave - two pictures attached to this message - 1 picture a wide shot and 1 pic up close - appears white - almost looks like tentacles -...