Originally posted by Mr. Angelfish
Within their meal and moreover you will appreciate having him. My LFS had to put that fish in one of his 240 gallon reef tank because of this.
I strongly disagree with adding a butterfly fish for the sole use of ridding the tank of Aiptasia. Butterfly fish are difficult to keep and will often be finky eaters. Many starve in captivity, and are highly susceptable to ich, bacterial infections, etc. I consider it cruel to add such a beautiful and delicate butterfly just to get rid of aiptasia.
As far as getting rid of aiptasia goes, some pepperment shrimp will eat them while others will not. It really depends on the personality of the shrimp. Enjecting the aiptasia will calcium hydroxide (kalkwasser/limewater) may also be an effective way of getting rid of aiptasia.
Graham