The white worms are pods. Anything small and crawling is going to be beneficial. The mantis shrimp are your only worries. All sponges, worms and crawly critters will eat detritis and keep the water clean. Those are your filter. Every time I freak and post on RC "What is THIS?!?" (you can search on that, by the way, and find me) with a picture, I get a "I wish I had those!" reply. You are in good shape.
Likely will have corals sprouting after a while if you treated the rock properly when adding it to the tank.
Congrats!
Likely will have corals sprouting after a while if you treated the rock properly when adding it to the tank.
Congrats!