I won't profess to know much about discus, but these might help you if you haven't already come across them:
http://cichlid-forum.com/articles/breeding_discus.php
http://cichlid-forum.com/articles/keeping_discus.php
http://cichlid-forum.com/articles/breeding_discus.php
http://cichlid-forum.com/articles/keeping_discus.php