There are a few measures that can be taken to minimise risks when transporting fish. None are foolproof, since the mere act of transportation creates stressful conditions that many species of fish react adversely to. Therefore, even if the following guidelines are adhered to, stress may still occur.

Temperature

This is best controlled by wrapping the polythene bags or containers in newspapers and placing them in a polystyrene box, such as those which pet shops use for transporting their own stocks in. If this is not available, then a normal cardboard box may be lined with polystyrene tiles. If even this is unavailable, then the wrapped bags and/or containers may be packed in a box containing polystyrene chips, shredded newspaper, small pieces of foam such as those used in pillows, or even a blanket.

Oxygen

Oxygenating tablets may be used, but in the majority of cases they are unnecessary. Instead, the number of specimens in each bag needs to be kept to a minimum, and a volume of air at least four or five times as large as the volume of water needs to be allowed. The oxygenation of the water that will take place efficiently enough for most fishes' needs.

Feeding

No feeding should take place for at least a few hours