So, I recently bought a 6 gallon cube, and I'm liking the idea of turning it into a small biome for a single betta to love and thrive. I know Java ferns are native to Asia, but what other plants would be ideal for me to put in. The tank is not that big, but I'd like to heavily plant it for the little guy. My plan is to use a Co-op sponge filter for filtration, planted tank substrate, a preset heater, and a planted tank light. What plants other than Java ferns would fit the Asian theme?