We got the berghia in our tank now. While we were doing the drip before we put them into the tank, they did eat most of the aptasia that I put in there. I am very hopeful!
Thanks for your help.
Everything arrived happy and healthy and the Berghia already had eggs with them. They've been eating and laying more eggs since they've been in the tank too.
You're right about the corals - they are beautiful.