I bought (4) 1/2" to 3/4" Berghia a couple weeks ago. After acclimating I placed them in my tank (39 gallon display, 20 gallon fuge/sump). They crawled into the nearest holes and I've seen no sign of them or of reduced aptasia. Has anyone had experience with Berghia? What is the time table for seeing results with aptasia reduction. My fear is they ran into one of my large bristleworms and got eaten.