Making a tank with a divider attractive

Hi everyone! It occurred to me while doing research that most wild betta species are not necessarily well suited for being kept in pairs or groups - either due to aggression issues (splendens complex...coccina and simorum complex bubblenesters are less aggressive and could conceivably be kept together long term, though the latter are quite large and would need a substantial tank) or incessant breeding (all mouthbrooders...this could also result in the male starving to death from the incessant mouthbrooding). Since I would still like to keep wild bettas of multiple complexes in the future, the most reasonable solution seems to be to keep them in a tank with a divider - perhaps a 10 gallon for smaller wilds (needless to say, larger species like Unimaculata would need something considerably larger). How would one make such a divider attractive? Perhaps by creating a moss wall or gluing small pebbles to the divider? Obviously both sides will need their own filter if I do anything to the divider. Thanks

 

Maybe u could decorate each side with plants, signs, etc

 

Maybe u could decorate each side with plants, signs, etc

I was going to use a lot of plants and hardscape...however, I was asking more about making the divider itself less unsightly, if possible.

 

Each side of the divider

 

They sell ones with holes that you can tread decor through

 

I always thought it would be kind of cool to see a divider with holes in it, but making it a giant java moss mat or something as the separator.

Of course I'd never accomplish it, as java moss seems to be a very elusive thing for me to grow. No idea why. I keep trying though LOL.