hitch hiker

Just got some trochus delivered and a few have some nice clusters of im assuming hoof limpet maybe someone can help confirm for me?

these fleshy things have been growing on a piece of live rock that came from an lfs. The rock has only been in the tank a little over a week. They haven’t spread but appear to be getting bigger! What are they?

Never seen one quite like it anyone can ID it came in on live rock rubble it moves , it has two small holes on each end - it is soft and squishy like a slug / snail / anemone and I have seen it squirt once or twice - looking to figure what it is if NPS or a pest or a fish eater Also anyone...

Anyone know what this is? LFS owner and I have been watching it for a week and have no idea, when it open fully, it gets out about an extra quarter inch. No tentacles or anything. It also reacts and will retract when touched

Hello everyone, I received some corals today from Austin Aqua. 2 of the corals had the critters in the he below picture on them and they came off during the coral dip. I think they are brittle stars or serpent stars. Any help would be appreciated. Trying to decide if they should go in the tank.

hi ! i’m new here and to marine aquarium keeping in general. I ordered some macro algae and the Ulva I ordered came with this lil guy and pieces of him all over it. just wanted to know if this is a bad, good, or neutral hitchhiker ?? any tips and advice is appreciated as well !!

Hello, I just received a cleanup crew shipment and in one of the bags with a whole mess of dwarf ceriths there was what looks to be an extremely small clam. It's no bigger than a centimeter and I'm wondering if anyone knows if it will get larger or remain small. I placed it in my sand bed...