sagittaria subulata

Hello I just purchased some sagittaria hoping to put it on some rocks. Will they thrive through the water column or do they need to be into substrate.

Hi, I spent heavy money on a nice driftwood, and I am now planning the layout around this stump. The pice has the following measures: 50cm x 53cm x 40 cm (width, lenght , ,height). The aquarium will have: (120 cm x 55 cm x 50) . This won't be a high tech aquarium. Mainly easy maintenaince...