hitch hiker id

Hello everyone! I just received an order of clean chaeto I ordered from algaebarn and there are some hitchhikers in the bag, are these pests and something to be worried about? Thanks for your time!

I noticed these weird worms? In my tank they eat food if I put it down there. They've recently been popping up all over the tank. What are they? And are they harmful?

I caught sight of these little guys in my tank this morning before I left for work, I googled around and I’m guessing that they’re copepods but I wanted to get confirmation that they’re not harmful. Tank is at least 6 months old (possibly more, I’m the second owner), and the parameters stay...

Guys!!! It’s been months! But I finally got a decent video of that darn work thing that’s always poking out the rock at night!!! It always comes from the same spot and seems to eat the left over food which is great! I am terrified that it’s going to take out some live stock though! Any ideas...

ID ?? Thank you in advance!

I removed a good sized chunk of a chalice that had overgrown a rock with zoas. Once off I noticed this really weird sight. Looks like purple blob that has a deep hole in it and orange filament running through it and don’t know what it is ?!

Hey guys, I have a derasa clam who’s been doing great for over a month now. The other day he developed a hole in his mantle — so I’ve performed a fresh water dip and relocated him )”(unsure if something may have messed with him). After the dip, I noticed a bunch of snail shells around him...

Anyone know what these hitchhikers are? One looks like a rolly-polly arthropod and the other a clear something—both came on a coral. Video link below: https://www.icloud.com/sharedalbum/#B0qGrq0zwGIRija

I'm new to this hobby and I encountered these on my newly bought corals. One lookin like feather potruding from torch coral, and the other one with a 2 antenna. Are these reef safe? What should I do? Thanks

I just found my first and hopefully my only Aptaisa! It’s on a rock that I can remove from my DT but the rock hosts one of my corals (can’t remember what coral my LFS said it was) I’ve had this coral at least 4 months but it’s just now made itself known. I’ve attached some pictures. Im new in...

What are these guys? How do I kill them dead? My new zoas won't open. I'm pretty new. Been reefing for about a year. I apologize if this is a boring/easy/already thoroughly covered question.

Anyone know what type of snail this is? Attached is photo and the eggs. I was thinking it was a stomatella snail but wasn’t to sure.

Just noticed this small brown thing with white/blue tipped tentacles on the glass of my NPS tank. Any clue what it could be? Sorry photos aren’t the best but curious if anyone recognizes this? Thanks

I found these guys all over my glass and this plug was a good spot for me to catch them on camera its a little tough to tell on camera which are flatworms and which are pods. The flatworms are dome shaped in the front with a split tail. Should i be concerned or can it wait until i get a little...

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?