Aquatic Carnivorous Plants: Utricularia & Aldrovanda Tanks

I have a small aquatic carnivorous plant tank, seen above, which contains Utricularia gibba (mostly), and, thanks to a generous mailing I received yesterday, now contains Aldrovanda vesiculosa, Utricularia australis, and Utricularia macrorhiza. Most of what you can see in the above picture is, of course, not carnivorous (duckweed and some other plants), but necessary to help the water maintain the correct pH and composition to allow the carnivores to flourish. Below, you can get a side view:

I'm excited for spring, when I hope to see some yellow flowers, like the U. australis below, carpet the top of the tank. Of course, that'll be nothing compared to the joy of having the Aldrovanda flourish. Hopefully, the conditions are right for such an event.