I've had about 50 dubia for about three weeks. I read that the ratio between male and female needed to be different. I fed off about 6 males. I have provided them with hiding spaces, fresh cucumbers and oranges for liquid and a mix of rabbit pellets, iguana food, dog food and fish food to eat. I check on them about twice a week to see if they need more food. There is a CD sized vent covered with wire mesh on the top. Directly above this i use a 60 watt ceramic heating element to raise the temp. My question is this, why haven't they started breeding yet?