Unfortunately, bacopa monnieri actually grow pretty fast for me in the tank I'd be keeping it in. It's a nano, so it's kind of a hassle with stems. Also, I'm using Fluval Plant Stratum, which in my opinion, is frustrating when it comes to anchoring plants in the substrate because the pieces of substrate are so light. What about a banana plant? Sure, it's kind of awkward looking, but I love the look of the lily pads at the surface. It'd be complementing anubias nana petite as the only other plant in the tank, adds to the kind of "clean" look I'm going for, and isn't hard to "plant" into the substrate.