Recently I got a vacuum so I decided to switch from beach stones to nice black gravel. I really like it I like how it makes the fish, plants, and ornaments pop. And my betta is also enjoying the new plant
You might want to see if you can raise that bamboo up any, it's non aquatic so the top needs to be out of water or else it will rot. Love the tank look, I'd recommend putting more plants in but it looks good so far!