Long Stem Lengths Between Nodes

[Tyger]

QUESTION:

I have a vague recollection of reading somewhere what long stems lengths between leaf nodes means. Although this is not the case with all of my plants, I have found that it is especially the case with my Cambomba. I start with a beautiful, bushy Cambomba... and, no time later, we've got large gabs between leaf nodes, which for me, makes the plant look gangly and far less attractive. Oh, I should add that the Cambomba, otherwise, seem fine and, for Cambomba, have nice rooting. So, I would appreciate information what are the possible causes and how to fix it?

Thanks, in advance, for taking a moment to help me learn,

~Tyger (Michael)~