My D.regia has been growing kinda weird since I received it on April 28,2006. The new leaves unravel like they are supposed to, but the tentacles don't "unfold" like they should. Then, after about 2 weeks the leaf begins to turn black. It is about 6 inches from my grow light, temps around 80-85F during the day, and humidity around 50-60%. Anybody know what I am doing wrong?