[Found in Southeast Asia]
R. wallichii requires bright illumination, CO2 injection, and a balanced fertilization regime to thrive. Lighting should be at least 2 watts per gallon for best coloration and growth. Ample, steady amounts of CO2 from either a do-it-yourself yeast or a pressurized system is needed. When conditions are good, this plant will reward the hobbyist with luxuriant, bright pink, orange, or deep red stems one inch or greater in diameter.