DE would kill a lot of the bugs need to speed up composition. If you have any ammonia problems, you need to find out where the moisture is coming from. One possible source is your water supply. If possible, put the waterer in the run. Ventilation is VERY important, this can not be stressed strongly enough. Ventilation will remove a lot of moisture from your coop. Poop boards are not necessary with deep bedding. But that is a personal call.