Oh. I see.

Forgot to mention that Ralph moved a few of the baby fish into the big tank, to see how things went. When I fed today, I only saw three of them at first, so I looked around a bit. Ah, there it was, swimming with the other one. Wait--other one? I thought he only put in four. . . well, maybe it was five. Um, six? Seven??? I asked Ralph, "Sweetie? Did you move more babies to the big tank?" He said no. We looked closer. . . yes, yes, there were at least ten in there, and most of them were smaller and darker than the babies in the small tank. Looks like we've got another preschool. And that one fish still looks awfully fat. . . . oh dear. . .