don't squueze or smash them their oils will spread throughout the tank and you will have a huge mess. use kalk and make a pultice and squirt about 1cc directly on it,turn off ur skimmer. don't freak out and think it's over because we all wind up with appy's now and then. if you want you can buy aptaisia control by blue life for about 10-15 bucks if you don't have kalk.