c-man, those were probably ricordia...unless there were a bajillion shrooms on there
first off, there is no reason to cycle with fish, and im not even going to get into the flawed judgment of "i'm going to cycle for 2 months"
anemones are one of the most difficult sw animals to keep, not ideal for a nano, especially one as small as you speak of, and a terrible choice for a beginner...brain corals and bubble corals are decent choices for a begginer but the bubble can be problematic in a nano because of its sweeper tentacles, the long reach often stings its neighbors
sponges are, again, a poor choice for a begginer...
i implore you to go do some research before you start wasting money and killing animals, its just plain irresponsible. clearly you have no idea what is involved in maintaining a SW tank and you are utterly unprepared to stock it appropriately...its like having a child for the fun of it, just a bad idea