I found aliens

I think I found aliens in my reef. seriously, i see these translucent, white, filaments , 1-2" long coming out of rock and sand. Copepod antenae? bristleworm tentacles? what do you think?

spaghetti worms

[You must be registered and logged in to see this link.]

that could be it

neat

I have thousands (well, okay... maybe just hundreds) of those in my tank. Look at them at night with a flashlight. You will see lots more of them and the ones you see will have bigger and more numerous tentacles.