Id switch that hob to be on the side, them add some natural gravel substrate, add some driftwood and a few larger rocks, maybe some live plants if you'd like. Then add 2-3 schools of native Cyprinids like SRBDs, yellowfin shiners,and flagfin shiners. Plus 6-8 darters on the bottom such as rainbows and Bandeds. And that's a tank I'd be content with.