I kept the water just below the prolif, and like Becky, I changed the water every other day, slicing off a bit of the scape at that time. The nubs just never grew down to the water other than the one really long root, and again, like Becky, I was afraid to raise the water level to where the nubs were. I sure didn't want any crown rot! Thankfully it all turned out great once they got to Becky's. She had the magic touch!
I had only grown one in the dirt prior to this. I assume it survived, but I'm not positive. I know it was there for a long time, and then I finally forgot to keep checking it. I just cut it off the plant and stuck it in the ground, so this was all new stuff for me!
