Here are a few more species that I was able to identify for my "fish list."
linckia laevigata - reef and lagoon starfish
plate-like, staghorn, and table Acropora corals
fungia horrida - mushroom corals (including a neon orange one)
plerogyra sinuosa - grape coral
spirobranchus giganteus - Christmas-tree worm (the bright blue-ish purple ones are my favorite, but the others are lovely too. Red, yellow, white, orange, etc. These are one of my favorite little things. If you wiggle your finger at them they disappear into the coral and then slowly creep out again.)
ascidians - seasquirts (I think this is what I saw. It has the closest description that I can find)