#hitchikers

I have no idea what these are, live rock is from Florida, they are randomly appearing everywhere. They start clear and some are taking on this red/pink tone

These little white strands are coming out of rock work especially in the evening they are all over the place. Tried suck and grabbing with tweezers and they just retract. I was doing some research and they look like digitate hydroids and doesn't seem as if there is anyway to rid of them...

Appreciate the image isn’t the best but this is a reclusive little crab! He has been hiding out in some live rock and I’d like to know what he is before I decide if he goes in the main tank, the sump or go the LFS! I’m sure his little eyes looked red too if that makes any difference!

Please if anyone could let me know, I found a small snail on my newly bought chalice frag, there's plenty of snails in these tanks at the LFS where I purchased it from... Could someone pls help me identify it & let me know if it's good or bad?? Thank You so much.

About 6 months ago I noticed one of these little guys. Now, I think I've counted 8. They're really small. The biggest one I've seen so far is maybe the size of pea. I havent noticed any issues among the coral or fish. But I reeeeeeaaally wanna know what it is!!! In the 6 months of having these...

Please tell me what in the world these two are.. Pay close attention to video.. You will see it close as my finger gets closer.. And the pic I'm trying to figure out the red thing?