Do crayfish go deeper when winter is here? If so, then they might be easy pickings for the predators in the pond during winter if they have no place to hide.
good point!
I have never watched winter behavior my self , however I surely would think they utilize the deeper cover in the winter.
RAH:
I know you said you are thinking of adding to a depth up to about three feet. If you can get some in deeper it probably would be beneficial
