<Li> <P> Cardinalfish swim in schools for protection against trevally . </P> </Li> <P> Cardinalfish swim in schools for protection against trevally . </P> <Li> <P> Bigeye trevally hunt cardinalfish in packs and herd them against the reef . When the cardinalfish panic and break school formation, the trevally pick them off . </P> </Li> <P> Bigeye trevally hunt cardinalfish in packs and herd them against the reef . When the cardinalfish panic and break school formation, the trevally pick them off . </P>

What kinds of fish live in coral reefs