Last of the Time Lords in Questionland asks:

What happened to the Sea Monkeys that the Stranger was trying to grow a few months back? Did they die?

Well... it's true. I birthed our baby Sea Monkeys. Then Cienna killed them. She added tap water to their plastic aquarium and they died. She left them on her desk for a day—to make sure they were really dead—and then gave them a burial at sea.

In related news, she's also available for babysitting.