Hey Jim, i dont think color just has something to do with lighting, ive noticed with some dews they color up much better due to the media i use along with certain bulbs for lighting. When i got these dews they were in a peat/perlite/sand mix, so i used the same type i mixed up and have had no probs at all with them. There in the same mix of media i use for the D. Kennealyii, hope i spelled that right.
I belive theres diffrent locals of this dew and each has diffrent deepness of color. What do you guys have yours planted in for media and what type lights are you using?? I also noticed the water levels they sit in effects them big time, i keep there water level they sit in VERY low.