Hey DD,
Bicals have very large root systems, so it may be that you need to repot. Also, they like it hot,wet & humid. Mine is growing in a large pot (10" pot for a 14" plant) in LFS mixed with some orchid mix for a little "chunk."
Interestingly, my bical went into a long period of not pitchering....then finally decided, "what the heck," and began again. Only then did I put a thermo/hydromter in the tank....The day humidity levels were getting down to 50%. No wonder it wasn't so thrilled. Since I've increased the humidity levels (two weeks ago), the plant has perked up and SEEMS to be doing better....I guess it might be a little early to tell, though.