Tetrafin weekend food is a specially formulated vacation diet to keep your coldwater fish healthy whilst you are away Features: Pack contains 10 holiday sticks. 1 stick will sustain between 1 and 3 goldfish for 2 to 3 days. Each stick is 100% nutrition and contains no plaster. More sticks can be added to sustain more fish for up to 5 days. Each holiday stick contains all of the active ingredients found in other Tetra tropical foods and can sustain you fish for up to five days. Simply add the recommended number of sticks for your aquarium and your fish can feed on them at their leisure.