Hey, I bought this rock two months ago. This hitchhiker started out real small like could not see it small and is now three quarters of an inch wide. Can anyone tell me what this little hitchhiker is? Also is it good, bad, or just ho hum. The colors arent great but its interesting how fast it has grown. I would think mushroom but with the fringe I don't think so. But I am new to reefing so could be wrong.