Lil' update. In the last week or so, all 3 adults have died. I know Berghia have a short lifespan, so am assuming they'd all outlived theirs, as they were all eating well and had plenty of Aiptasia available. As the egg strands, in the adult container, had "vanished" over a few days, I decided to leave that container alone, and supply it with some smaller Aiptasia. Yesterday, we saw at least 1 teeny tiny Berghia in it, so I'm assuming there are more. As I'm able to identify Berghia, in this container, I'll move them to the Nursery container. In the Nursery container, the 5 baby Berghia are growing quickly. The egg strands that were in that container have also all hatched, so I'm expecting to see more Berghia in it, in the coming weeks. I'm keeping both supplied with small Aiptasia, so far.