Betta Fish: Introducing our betta’s new set-up

I used to run nano reef tanks (26g, 7g, 3/4g) over 20 years ago, and decided to try a (filter less) 5.5g betta tank. Still figuring things out, but it started with some off brand fluval stratum with some gravel, cycled for about 2 months, slowly adding plants, and moved this guy in after water was good. Currently doing 10-20% weekly water changes, and there's a bunch of terrestrial plant clippings from my apartment's overstocked plant obsession including an orchid that just started to bud

I've been adding some catappa leaves, but I'm concerned the Seoura (12-18") light might not keep up with the plants' needs with the layer of red root floaters that keep multiplying and tannins (I'd like to add some more planted plants.

But anyways here's the start to our guy's set up who basically is like a trained puppy looking for a treat when I walk by less