OHHHH you said FOR an aquarium. My bad-
No, most plants will not grow IN your tank. They will just rot and die.
Mine have stems IN the aquarium while the leaves are outside it-
Basically I have plants growing OUT of my aquarium.loll.
You cna experiment though,
.
Use a jar with water in it and put your plants in- or over time gradually increase the amount of water your plant gets-.
It might work eventually.
Yuppers you can root them.
These are the ones I have going now-
Angel Wing Begonia.
Wandering Jew.
and Coleaus. (SP?)
They all have "juicy" stems- succulents.
All I do is remove the leaves that would be underwater and stick them in the tank.
I also have some growing out of my filter,lol.
I've never had a problem with doing this- but I don't know if they are deadly-
Probably not, since I've been doing it for years,lol.
I even have one growing fully underwater. I truly doubt it will last long though, maybe put out a couple leaves.
You can grow woody stemmed plants like this as well.
If it can be rooted in water- it can be rooted in an aquarium.
Just make sure it wont kill your fish,lol.
I do NOT recommend using Angel Trumpets aka Brugmansias.
Every part of that plant is deadly.