exoticfishguy;3460854; said:Don't use a pillowcase
Foolish suggestion.
It's not going to hold water, so your fish will freak out and damage itself.
It will tear it's fins, lose scales or break off it's barbels.
Why don't you just use a big plastic bag?
Triple bag or more if you're afraid it will explode...hasn't happened to me though.
Get some from your nearby fish store or try heavy duty garbage bags.
Make sure there's enough water in the bag to chase your fish into it and you're done.
No pillow case! 
This is how to move an arowana:
1) Make sure your tank water is clean and ready for new fish, and your tank temp is about the same as the other guy's tank temp.
2) Get a decent size container (plastic tub or styro foam box), put 2-3 heavy duty plastic bags, 1 inside the other, and put them inside the container, fill the inside bag with some water from the tank
3) Drain the water in the other guy's tank to half way to 2/3 down. Turn the light off
4) Use another 2-3 heavy duty plastic bags, put 1 inside the other, and use them to "net" the arowana. Once the arowana is inside the bags, release most of the water out of the bag, and hold the bag as tight as you can, don't give the arowana much room to jump in the bags. The more room you give the arowana, the more chance it can puncture the bags. Once the bags is secured, remove them out of the tank, put them inside the other bags that is in the container, and release the fish into those bags. Fill the water, if needed, until it barely cover the fish top fin. Since you're only 10 minutes from the guy house, you don't need to oxygen, but blow some air in the bags before you tight it, with rubber band or tight wires.
5) Once you get home, release the fish in the tank. You can use the other bags to net it, or just release it from the bags in the container, but the bags in the container are quite heavy, since it has a lot of water
Good luck.




Hahahaha Sbuse.. stop making a fool out of yourself. I agree with exoticfish. NEVER USE A PILLOW CASE