Bannana plant propgation?

[Seized]

So ive heard of multiple different way to propogate bannana plants but im skeptical about them. Such as cutting off a leaf and letting it float or dutting the bulb in half. Are these viable options or not? 

[endless_summer]

Totally, I am propagating another banana plant this way right now. The stub at the center is where I cut the stem from the main plant, it has grown two small leaves since then as well as its first root from this point. I add nutrients to the water and try to make sure the leaves get enough light. This is maybe a week and a half of growth or so.