I got 12 Simandoa a month ago and so far 3 juveniles and 1 adult have died off in under a month. It's not a sudden die-off, but it's enough roaches to concern me. They are on a soil substrate with a moist and dry side of the box, the lid is well ventilated with a screen mesh underneath. The average day temperature is around 85 and 75 at night. I heard this species needs good ventilation, so do I need more holes? Thanks for any info. These deaths could be coincidences but I'd hate to watch my colony slowly die off.