The present article revises the major topics related to fish and coral reproduction. In particular after a short review of the ornamental trade and the destructive fishing methods that are still used in some areas, the present review revises the principal modes of fish and coral reproduction introducing the main critical bottlenecks in their captive propagation. Regarding fish these include sexing the fish, pair forming, the embryo development, the hatching process and of course the transition from an endogenous to an exogenous feeding by the larvae. As concerns corals, great attention is given to the main modes of reproduction as well as to nutrition and lightening.
