Jimulacrum

Maybe some more information will evoke a reply.

To give a sense of scale and age, the largest Musa in the top photo is about one year old, give or take a couple months (I haven't been counting). The longest leaf of that plant (the one that almost looks like it's touching the right-hand Musa) is roughly 2' long from where it meets the pseudostem. I don't really remember how old the left-hand Musa is, but I'll venture a guess of six months or so. The right-hand Musa is a few months old.

The right-hand Musa is almost certainly a Super Dwarf, but I have doubts about the other two. I identified them as Dwarf Cavendish by browsing many photographs online, but it's difficult to know if I'm right. Furthermore, the plant's growth makes me believe it may not be DC because it's so small after a year has already passed. I figure this could be due to its being indoors, but I don't have enough experience with Musa to judge.

If anyone here could give even a guess, it would be helpful. I'm concerned that if the larger two are DC, I won't be able to care for them as they get larger. I don't picture 6–8' Musa doing so well in an apartment with ~9' ceilings.