no!the fish will be stressed of an eight hour journey.but if you deffinitely want a fish companion,you can buy a betta!they would be alright with the journeys.ask your local fish store to pack him in a larger cover and ask them afew more covers for you.the bettas would need a min of 3 gallon tank and must have an airpump and a heater.when you return home use the cover which you had got from ur lfs and pack them carefully.its better to learn how to pack them from ur lfs and its easy too! : )all the best!