littleyea1
Reefing newb
i bleieve they are called speghetti worms and they carry stuff to them they usually live in rocks, the pancake thing i think is a time of snail without a shell they usually fee at night, and the corals i think are a type of toadstool they close up all the time and shed so if you see a lot of mucus one day don't be alarmed all and all everythine i think is safe to keep in the tank