Pitcher Plant

This carnivorous plant was given to me by
my son-in-law. I am supposed to keep
each cup half full of water.

When I went to bliphoto it, I noticed that
some of the pitcher cups were dying. That
means I have been neglecting it in some fashion.
I am thinking that now I will put a speck of
hamburger in each cup and again fill each cup
to half full. What do you think, bliphoto friends.
Then would it get stinky or would it thrive?