I've been in Nelson this weekend and checked out the plants in a small stream nearby. Besides watercress and duckweed I found this plant.
Does anyone know what it is?
I've looked on the web and I think it might be Ottelia ovalifolia. My other guess is some kind of potamogeton.
I think it looks quite cool - hope it's not a pest plant.
here's a link to a bigger version of the photo:
Is there any way to encourage it to grow floating leaves, or is it just a matter of waiting?
I'd quite like mine to grow to the top, as the rest of the plants in the tank don't require high light.