Well, if you want a fish similar to a snakehead, wolffish are pretty neat. That same large aggressive type, but they are at least legal in the US (can't say for sure in Canada). Lots of different species to chose from. I personally want an erythrinus erythrinus (red/rainbow wolffish).
There are lots of other similar fish out there too. Just throwing an idea out there.
55gPLANTED:Rainbows/Loaches/Garras|30gVIV:Crestie|20gL:Leos|10g:Pearl Fighter|5g:Betta|5gChi:Spark Gourami/Badis|5g:ADF|2.5g:Betta|2.5g:Betta|