My crown tail betta Zeus in his 5.5 gallon planted tank:
YouTube - Zeus the crown tail betta in his 5.5 gallon planted aquarium.
The HC (dwarf baby tears) did not do to well. The tank has evolved since then and now looks like this:
He shares the tank with 3 otto's and 5 ghost shrimp. I know it is overstocked, but I maintain it very well and am not new to fishkeeping, been doing it over 25 years. I do 25% water changes twice a week with a gravel vac one of the times. It is also well filtered with a Penguin 100 on it with a diffuser on the outflow so the betta can handle the current, no carbon, just floss and the bio wheel.