Sometimes when a plant rooted in soil is then forced to live in water, they rot.
Using just the stems, the plant adapts as it grows in the new environment.
I have used a lot of pothos.plants hung in tanks, and trained with roots worked into floating logs over the decades.
And found pothos realy needs to develop a healthty root system within the taml, to make a significant difference at nitrate reduction.
But pothos is not a panacea, so experimenting with other species, I have found a number of other terrestrial plants that do just as well, some maybe better.
One is Umbrella Palm (Papyrus) that is semi-aquatic, living happily with roots in water, but stems emergiant.

Another common houseplant is Philidendron, I often see certain varieties living semi-submerged living on lales in Panama

But my favorite these days is Dieffenbachia, bare root in top of my 6 ft 180 gal (toxic if eaten by dogs or cats, fish instinctually don't injest it)

,
The stems get thicker than my wrist, and it sucks up Ammonia, nitrite, and Nittrate like a sponge

,

With these plants and others in the sump like Vallisneria and mangrove trees, I never have issues

my tests results are 0.00 ammonia, 0.00 nitrite, and almost undetectable nitrate.

No one can tell you what results if your tank will be, without knowing its volume
1/2 gal, 1 gal, 5 gal, ?
without doing regular testing for ammonia, nitrite, and nitrate?
and what and how many fish
1 male betta, 3 females, half dozen guppies?
And what about air exchange, to break surface tension
an airstone, a hang on back filter? nothing?
You might get away with a small anabantid that can use supplimenta air from the surface, or a gold fish if you make 50% daily water changes.
As someone above said, there are lots of variables to consider, with out much info to go on.
