Nice but... – Guide for Dragon City Review

It is a very nice and good app but how will i know what to breed to get a certain dragon? Because I'm looking and it doesn't say which dragons to breed so I'm really confused i even used the breeding calculator i put in the dragons i wanted to breed and pressed breed it just took me to the top of the screen and showed white so i exited the app and re loaded it and it still did that so I'm really confused
Review by mr. dood man on Guide for Dragon City.