Board Thread:Dragon City Questions and Answers/@comment-99.249.175.235-20130515225600/@comment-123.21.175.42-20130629110611

You can get plankton by breeding a sea lv 10 and a terra lv 10 several time. If u fail the breeding time is 1 minute and sell the egg. If the time of breeding is 20h (from the beginning), u know u success