good/bad gooey things?

im by no means an expert at IDing right now....but I believe those are closed Zoanthoids. If im right, there fine...if im wrong, then I cant help ya, sry

I would go with pretty much dead zoanthid polyps allso

closed, dead, and dying zoas...

It looks like dying Zoas, put the rock back in and let it cycle, they may come back later.

one of the extended tube like things could be a tube worm if its hard, if its not calcareous then its def like dead polyps. from the looks of the slimed up "polyps" i would say zoas too.