wo things, if you first got them and they were laying good then stopped it could be from diffrent nutrition from food they may have been getting great feed and then slumped down to gbs (what are you feeding them by the way) and then another thing that may have effected it may be heat, they may have gone from artificial lighting/ heat to a less warm inviroment and lastly once those two thing have been corrected give them a nice clean pen and a sand box as well as a place to hide my quail often times stop laying when they decide their pen is to dirty or if they arent safe SO PRE-MADONNA.