One of the issues with such a thing is trying to balance the greenery with the roots. Since you have none of the latter, your plant can only support its greenery through using (up) internally stored resources - the same ones it needs for growing roots.
Oxygenation of the water is important. No, changing the water once per day is not too often, lol. Several times/day might be better. IF that water is somewhat more oxygenated than what's in your plant's container.
Depending on how long it takes, a very, very light dose of nutrients into the water might be helpful. Although the mechanism is much poorer than an actual root system, some will be absorbed. Again, a very light dose, lol. Products such as Olivia's Cloning Solution are good for this, as you end up with a very dilute solution when mixing as recommended (or even half that strength). But one could do the same with their regular nutrients, I suppose. Or give them a very dilute solution made up of something like Neptune's Harvest (the kelp one, maybe).
It's doable, but by no means a given. The uncertainty, waiting, stress... will be enough to ensure that you add enough perlite to your soil to allow for good drainage and learn to water when the plant needs it, not when you feel like watering it, I think, lol.