Fro importation of live fish (Department of oceans./fisheries)
http://www.dfo-mpo.gc.ca/science/aqu...namental_e.htm
Basic customs information/ What needs to be declared.
http://www.cbsa-asfc.gc.ca/E/pub/cp/...44-e.html#P022
Cites
http://www.cites.org/
If it is not listed on cites than the only worry would getting it on board the plane. If if was packed for shipping in Styrofoam with heat packs etc should be fine.