Wildlife Feeding Tube Size Guide

Choosing a wildlife feeding tube starts with understanding the measurements used to describe tube size. The Peculiar Purple Possum’s Lumenline collection is designed for trained wildlife rehabilitators and veterinary professionals who need small, clearly differentiated feeding-tube sizes.

Understanding feeding tube measurements

French size (Fr) describes the outside diameter of a tube. As the French size increases, the tube becomes larger in diameter. Diameter in millimeters gives the corresponding physical width. Gauge is another size reference that may appear alongside French size.

Tube selection should be based on the individual animal’s anatomy and species-specific guidance rather than age or weight alone. A tube that is too small can restrict formula flow, while a tube that is too large can cause injury. When there is any uncertainty, obtain guidance from an experienced wildlife rehabilitator or veterinarian before feeding.

Lumenline size reference

Why closely spaced sizes matter

Very small differences in diameter can be meaningful when working with tiny wildlife. Lumenline’s graduated size range provides smaller steps between tube diameters so trained rehabilitators can compare available sizes for the individual animal rather than relying on a one-size-fits-most approach.

Shop wildlife feeding tubes

Browse The Peculiar Purple Possum wildlife feeding tube collection for available sizes and individual product specifications.

For opossum-focused information and a comparison of the Lumenline Sizes 1–6 range, visit Opossum Feeding Tubes for Wildlife Rehabilitation.

For animal use only. Not for human use. For trained wildlife rehabilitators and veterinary professionals, or use under qualified, experienced guidance.

For the broad multi-species overview, visit Feeding Tubes for Wildlife Rehabilitation. For veterinary and other professional animal-care purchasing, see Veterinary Feeding Tubes for Animal Care.