hitch hiker id

Hello fellow reefers! I noticed some white spots on 2 of my acro colonies and snapped a piece to inspect under microscope. The appear to possibly be eggs from something but I truly have no idea. I added some Berghia Nudis a couple of months ago, eggs look similar but smaller Any help will...

I was just looking at my tank and noticed a little star fish. What kind is this and is it good or bad?

Hi all Tank is swarming with copepods and this weekend I finally get to add a fish (still deciding on the first tank mate!) I saw this weird clam like shell on the live rock. Any ideas what this is? I did think it was a clam or some kind of mollusc but kind of can’t believe that! Any ideas are...

I was just observing my tank and noticed something coming out of a hole in the rock which looked like some kind of shell-les snail. Any idea on what it could be?

I bought some Live Rock from Tampa Bay Saltwater and I noticed an isopod dead at the bottom of the shipping box so I decided to set a trap and see if I had the cirolanid isopods that seem pretty common with Florida aquacultured rock. I caught about 10 the first night and have caught 5-8 from...

Hey guys So we are a good few weeks into the 20 gallon and I have 6kg of live rock tank mates are Nasarrius snail, 2 red legged hermits and a turbo snail who is doing a great job on the algae clean up. The rock is covered in copepods but I noticed a weird tentacle earlier! There was a small...

What is he? (The one under the blasto, not the spionid worm to the left)

Hi I need help identifying this bug? Please help

Hey reefers! Anyone know what this is and how to destroy it?? Iker

Hey everyone My tank is coming up to 4 weeks old now and these rogue anemones have popped up! The guy in the lfs said they are ball anemones and to remove them with tweezers but I’m scared they’ll multiply and cause more issues! I wasn’t worried about them but I plan on adding sexy shrimp and...

Hello, I just picked up a Tiger Torch and this little guy came crawling off. Can anyone help identify? It looks like it may be a snail or slug?

I recently posted about a concerning decline in my reef tank corals with seemingly no cause. My parameters have always been good and stable for the most part. I was very confused because an entire colony of 12+ rasta zoanthids and a smaller frag with 3 polyps disappeared overnight, but that was...

Hi all. Only been into reefing for a couple of months. Watching the tank from a distance and seen my zoas starting to close. Saw this creature moving extremely slowly under them. Moved like a snail with really long hair like tentacle poking around. Photo to follow. Was searching as fast as...

Picked up this hammer frag today. There is pink growths growing off side of hammer skeleton. At first thought maybe aptasia but I don’t see any tentacles or movement from them. Thought maybe some type of pink/red macro algae. Other possibility is branching coraline. This wld be best outcome...

Hello everyone, I recently purchased some live rock from kp-aquatics and am having some trouble identifying two hitchikers. One is an isopod that I think is Sphaeromatids but would like to get some other opinions. The third picture is the isopod curled up on its back. The other is a worm...

Looks like it’s stinging one of my dscisoma mushrooms back.. multiplied as well over the last several months.

Looks like mojano to me but want to make sure as it is next to a ricordea Yuma , can anyone help ID here are the best photos I could get it is very small right now

Hey everyone, I noticed something weird on my rocks and was wondering if someone can ID it for me? I’ve looked around online with no luck. I’ve had the tank for about a year and this is the first time I’ve noticed this. Thanks In advance!!

I have recently noticed a feather duster like animal living inside the “stalk” of my new Duncan coral. There looks to be a small white hole in the coral where the “feather duster”pokes out. Is this critter harmless and if so how would I go about removing it from the coral? Any input is...

Hey! Long term lurker first time poster. I’ve just pulled this critter out the sand. It has an orange mouth and kind of pinkish tentacles. Should I worry?

Hello! About a week ago I took over a 4 year established biocube 29g. Wondering if this is aptasia or xenia. Water parameters: Temp: 77F Salinity: 1.026 pH: 8.2 Nitrites: 0 Ammonia: 0 Nitrates: 40 (they were 160 before a 50% water change and i’m still working on getting it down) Phosphates: 4…...

These guys are all over my tank. I have looked everywhere and asked many people, and no one seems to know what these are. They seem more active at night and when trying to touch the tentacle it retracts. I know it is definitely not a bristle worm or vermitid. And I do not think these things...

Purple shell, similar to a sundial. Concerned it will go after my coral but in the months I have had it, no such happening. It was a baby when it came into the tank. Thank you

Hey guys & gals , happy weekend, hope everyone is doing ok Recently found this growing underneath one of my scolymia, appears to be some sort of sponge / truncate but wanted to post photos just to make sure it’s not something more invasive which warrants removal Here is a photo (attached) the...

What are they and do the pose any concern?