Fine go ahead and get some mushrooms, they can usually go through alot, I'd wait a month more before trying some other corals though, perhaps you can get some other softies right away, xenia, colt coral..
Thomas
I have a 2 month old tank..once cycled, we got 2 sets of mushrooms, a colt coral, some xenias and a small frag of zoos. Not all at once of course, every week since cycled, we went and bought one...went slow...but all are doing great! good luck