I've had two 4" goldfish in with the plant for the last week, and they looked all right today. I may put a few more in. Not sure if I would put larger koi in, which tend to be more aggressive about tasting the plants. Still thinking about this one.
I did have a bit of a surprise today, however.
Euryale has decided to bloom, without waiting for its larger home. The leaves are about 18" now, and I filled the tank to the brim so that they could easily spill out over the edge of the tank. The bud was partly open underwater today, which is typical for Euryale, so I boosted the pot 3" to get it above the surface. Here's a close up.
