Attempt #2 is thanks to the kids' sitter, Ms. Miriam, who brought them each a fish last week for Christmas. Meet Nemo, Marlin, and Hammer (boys are not renowned for originality in the naming department).
We had a long talk with the kids about the lifespan of fish, and that just like butterflies, they will not live long. I guess we really drove it home, because every morning when we turn on the light, the kids go running to the fish bowl exclaiming, "They are not floating upside down! This is a good day!"
p.s. We love you, Miri!