It's generally not a good plant for tank culture, since it requires good airflow. you might try loosely wrapping the roots with sphagnum in order to maintain humidity.
I've heard of them having trouble with high heat, but I'm pretty sure that's just a myth. the area where I keep mine gets up to 120F during the summer, and stays above 80F for weeks at a time. The only trouble I have during the summer is keeping the humidity high enough.