Hi. I need some help identifying and caring for a few things that grew from my LR. One is a group of red bubble things that are growing right next to a greenish sponge. They are growing rather quickly. It started out with 3 bubbles, doubled in size over about 4 days and now appear to have a fourth bubble. Any idea what they are? Will they hurt my sponge? I also have 2 clusters of what looks like mini reddish brown anemones (about 2 mm) I can't identify. They retract into their tubes when touched. On another rock I have what I thought was a dead brain coral with algae on it. It was dark green with red rocklike pieces sticking out from it and laying on the underside of the LR in the dealer's tank. I put it facing up in mine cause I thought it was pretty even if it was just the skeleton. Now it's getting a white film growing over the top of it. I thought it might be trying to grow so I tried to break off a piece of one of the hard red things on it and noticed the coral is a little soft. Any ideas? Thanks!