And should i be concerned?

So I got an Anthia's and two clowns the other day, as I said in a prior post. This morning when I turned on my tank lights the fish came out as usual. I stepped away briefly to go grab some food for them. I come back to see the Anthia's hanging out with the Clownfish, and be puffs his fins up...

I have had this brittle starfish for awhile and I was wondering if it could be identified. It is different from any other brittle stars I have kept, in that it has spines on the body as well as the legs.

While cleaning my sump/refuge, I came across an odd growth on some coral rubble I had laying down in the sand, the growth was growing into the sand, and under the rock was quite a bit of debris and waste that settled there. I am not sure what it is, though it is hard, like an sps, and it looks...

Hi guys something strange is happening. I originally bought 10 red legged hermit crabs and a couple days ago I noticed that one was replaced with a cerith snail. I thought maybe there was just a mix up at the store but today I noticed a second cerith snail. I didn't buy any of these snails yet...

Hi again, well the tank is up and running. I'll be posting pictures at a later date. Have something unknown growing next to my shroom. Was wondering if anyone here could throw some light on it please? It's the small flowers & the cue tip little green ball.

So i was moving my rock around to try find my wrasse (who vanished, believe my bristle star ate him) when i noticed this thing sitting on my sand bed. I didn't know what on earth it was and removed it from the tank. Is it a sea cucumber? i don't know what else it could be.

Hi there everyone. I am new to this forum. I have had my saltwater aquarium for about two years now. We have two percula clown fish and a dottyback as well as many snails and crabs. We recently decided to try some corals. They have been in the aquarium now for a few months and are doing well. I...

I was just watching my tank for a bit just before and i realised there are tiny little white specks on my glass. There too small to take a photo of though. There about the size of a full stop on this page. I think they might be a species of pod? Or are pods too small to see with the naked eye...

Hi Guys Hope you can help I'm a newbie to keeping Marine fish. I bought some extra live rock and was reorganising my decorations when i noticed a strange larvae sticking out of the live rock it was white and about the size of a bean, Im just wondering what this . I haven't got a pic which I...

Please enter your "strange aquarium events" into this semi-official PMAC log for the strange events. Ok, I needed to keep a log of all the odd things that have happened as the result of keeping tanks (and not the mysterious lack of funds in the bank thing). I have had some odd things happen...

Was bored at work and started googleing tanks and found these....

I bought a pulsing zenia a few months ago. A strange pink with tiny purple bumps "bubble" is growing next to it and growing quickly. Any idea what it is?

Hi I'm hoing you can help me. I'm fairly new to this hobby and my first coral, a mushroom, has been doing some funny things since i've had it. There are 5 mushrooms of the same variety on the rock which I purchased but only one is doing these strange things. It starts to close up now and again...