Hi guys, this is my out-door tank . Notice that it has clay on the bottom (it is important to give Boro to the plant), a thermometer / heater, CO2 injector, monocots (to inject O2 and CO2 in the water, and consume excess of nutrients and prevent algae growth), and water from a pond full of aquatic organisms (food).
The water is dark because of the leaves of Drosera, Juncus, Carex sp. and others in the bottom. Tannin appears to have a role in plant development, and is found in its natural habitat.
They came still green.
Juncus, U. gibba and food... I mean, Biomphalaria sp.
They soon became red, and look, they have flowers.
Temperatures here are around 32 oC.