no shrimp in the tank at all, I am totally willing to give the berghia time, problem is a group of aptasia have established themselves right underneath my trupet coral, and they are really giving it a good stinging, and they are at an odd angle to syringe... I am sure the berghia are still in there going strong, as I have seen some aptasia dissapear, but I need to take out this little group of them, There are some in the back I will leave for food purposes.