I have been haing some minor problems with my D.capensis albino. The tentacles produce tons of dew until the last half - inch, where the tentacles don't produce any dew at all. After a few days, the part of the leaf that didn't produce dew turns black, while the part of the leaf with the tentacles that produce dew stays green. The humidity is 60% during the day and 70% at night. The temps are around 81F during the day and 73F at night. They are on a 16 hour photoperiod, and get plenty of light. These plants have been doing this odd phenomenon for about 5 months.