Its not a floating plant. At best it might try to grow leaves out of water...but with nothing to anchor to it might just rot not being able to balance.
Just tie it down with some string or metal twistys like on bread wrappers...THEN use super glue. The combo works because it keeps the plant from moving underwater letting the glue set better. Most people who glue dunk the plant before the glue dries solid...hit or miss.
Tie it down,add glue I say.