Yeah man, that's what I did. Unfortunately I don't have any pictures, but perhaps someone else can try this experiment on an extra seedling they have.
Like I said, for about a week, the stem was stretching considerably. I guess to get towards the light. The water plants I had were thriving, under the small aquarium lights, but it just wasn't enough for the seedling I guess. After about a week, the plant just started to disolve into the water. Perhaps if I had better lights, it might have actually worked for a while.