This link might help with the timing of various needles: http://www.zzcat.com/CRF/supplies/AboutNeedles.htm
With my boy, I started out using the 18g x 1". Now that he's lost considerable weight and his skin seems more fragile, I switched to the 20G x 3/4". He doesn't flinch (as much) and I don't poke through the other side of the tent (as much). I've looked at purchasing the thin walls since my vet doesn't supply them, but have yet to do so.
With my boy, I started out using the 18g x 1". Now that he's lost considerable weight and his skin seems more fragile, I switched to the 20G x 3/4". He doesn't flinch (as much) and I don't poke through the other side of the tent (as much). I've looked at purchasing the thin walls since my vet doesn't supply them, but have yet to do so.