Guam-in-a-box

Guam-in-a-box is made by adding ground guam to an empty box. In order to obtain an empty box, you must first talk to Harry in Catherby. To make the ground guam, the player must use clean guam with a pestle and mortar. Adding ground seaweed then turns it into fish food which can be fed to a player's pet fish. This is currently the only known way to obtain fish food, other than picking it up in Draynor Manor. Making it provides no experience in any skills and is only used to feed your fish and to be used in the quest Ernest the Chicken to poison piranhas and obtain a particular item for the quest.

In some item-related Quick Chat phrases, it is possible to refer to an item called "Guam in a box?".