Nepenthes rajah Terrarium: Light, Temperature, and Cooling Strategies

A grower has two N. rajah under T12 40W cool white fluorescents (8" away), sphagnum/coconut husk mix, in 8" pot with vented ziplock bag (humidity >80%), room 72–75°F, moves outside at night for 50–60°F. Plant shows slight reddening, one older leaf dying. Expert: conditions are good. Reddening normal. T12 light soft even at close range. Stop moving plant outside – causes stress. Instead: water with cool water at night, or use terracotta pot for evaporative cooling (monitor watering). Patience needed – N. rajah is slow even for experts.