LOL Marina
The only person i received kordon bags is two posts above, but rotifers, they pack them in peanuts and they can stay there up to 2 days.
I use 9 liters of water from the same tank and the rest oxygen. Don''t overfill the bag like a balloon leave some uninflated. Use two large rubberbands to close the bag, if the temp is below 55 use hand warmers one in each box, if the temp is over 80 use ice packs.I use the styro you see at most LFS when they receive fish and a bag the same size, never had problems with the airlines and or schedules.
Oh the fish will suffer hell, they get tossed kicked dropped you name it make sure you get strong boxes, they even leave the boxes upside down even when it says this side up and live fish.
Ed