I dont think so. Usually when you get them they dont have any leave on them. Most the time they will be sprouting a new stem out of where it was cut.
If its like a lot of plants, you can cut it. Were its cut, it should sprout new stem(s) and the top piece that was cut off, if you put it in water, should sprout roots and then new stem(s).
I have heard they are hard to keep. I dont have fish in the pico any more. I still do water changes, and the cheato grows pretty well, so maybe I dont have the nutrients for it in the pico any more. It grew pretty tall too. Might have been too close to the LED's. IDK.