As I am sure all of you have gone through what I am at the moment. I recently set my first saltwater tank up. I got live sand, bought 70% of my water from my lfs tanks and 30% mixed from them. I got a steal on a pretty large rock from them due to there mistake it is a 35-40 lb rock that was in the 3$ bin when it should have been in the 7$lb bin. I got a pretty 2 1/2 lb piece of live rock to help further seed the tank. The dust settled and for the past couple days I stare intensely at the rock. I see changes although little changes they excite me. Then I see it tonight little piece of something I am sure is alive! Well I go looking to see what it is.....To my sadness its the dreaded APTASIA ! grrr lol. I trust you all here so whats the best method for removal? And is it atleast a little bit of a good sign thing are staying alive albeit a invasive species ?