Never hating in an incubator I really can't say but we have some seasoned hatchers on here, Lacrystol being one, maybe PM her.
Have you looked through the search?
Might find some ideas herehttp://www.backyardchickens.com/t/491013/goose-incubation-hatching-guide-completed
This says goose incubation guide but can be used for water fowl period.
Edited by Miss Lydia - 11/26/14 at 2:43pm