I have attempted to replicate some biotopes but im admittedly not very good at it. My tanks as of right now are all mashups. Perhaps when i stabilize my new, immature tanks and fish I'll start separating them geographically.
One tope im steadily working towards is a small congo river tope for my 60. I already have the tank, 3x syno shoutedeni and 6x brycinus longipinnus, a cool piece of black african marble, and a piece of driftwood that resembles an elephants skull. Im thinking about maybe a smaller hemichromis, kribensis, butterflyfish, or maybe even a bichir to throw in the mix.
Im also crazy about the idea of a shenandoah river tope (local for me). It would have to be a long tank with strong laminar flow and lots of boulders. A group of redbelly dace, some bluehead chubs, and madtoms.