N. bicalcarata is an awesome plant. I've found that it does very well with temps no lower
than 20 C, and daytime highs up to 37 C. Humidity can fluctuate quite a bit, yet most clones
will generally pitcher well. Average humidity of 70% or more is adequate.
Note, however, that this species will become very large. It is not uncommon for well-grown
specimens to reach 1.5 to 1.8 m diameter. Therefore, growing one of these in an aquarium
will not be possible forever! One of my plants grew from the size of a fifty-cent piece to
about 1.5 m across in four years, So, take my advice and plan ahead!
Finally, as bicals get larger, they will need to be repotted. Watch out for this, as signs of stress
under high temperatures are usually a good indication that your plant needs a larger volume in
which to spread its roots. Larger specimens will need pots in the range of 30 to 40 cm
in diameter.