If you are flying into/out of Kenai Airport, be prepared to NOT be allowed to take a 3rd, 4th, 5th piece of luggage. I heard from the airport manager there that the small commuter airlines servicing that airport were considering not allowing that much luggage per passenger! Also, the larger airlines are charging incremental fees per 'extra' piece of luggage. $25 for 2nd bag, $50 for 3rd and so on.
I recommend you have an alternate plan for getting your fish home! Don't get caught with your pants down at the airport!