Putting a small insulated box on a plane

[2pts]

Hello all, I will be flying to Ontario (I'm in BC) in 3 weeks.

I am thinking to pick up 5 zoa / paly frags. I will bring a really small insulated box which would be able to fit them. then I am thinking to put that box with a cardboard box around it, then a plastic bag around that tied with elastics, in my luggage and check it. I am flying with Westjet. I called them but they just trasferred me to West Jet Cargo which had no idea if it was allowed in baggage check, but they did quote me an astronomically high cargo rate.

I am looking for experiences from anyone who may have done this in the recent (post 9/11 era) with preferably West Jet. I have read of experiences of Lobsters being allowed from the Maritimes.

Thank You.