I recently looked at the Canadian government CITES page. Ornamnetal fish can be legally imported into Canada unless they are listed in CITES. The only ones I could find listed were seahorses although most corals and LR are covered. I think that Hawaii may have its own regulations about collecting and exporting fish from the state.
You can find information about CITES restricted animals at:
http://www.cites.ec.gc.ca/eng/sct8/index_e.cfm
Here is the URL I used to check this out but it seems to have stopped working since I last checked it 2 months ago:
http://www.dfo-mpo.gc.ca/science/aq...rnamental_e.htm