Pisces starts off fine but often ends up worses off after storage and freight. Find a local supplier. If you give a more specific location locals might contact you or tell you their nearest distributer.
I'm on the far south coast NSW. so somewhere around here, or as far as sydney & canberra maybe ok for freight. I know the local petshop can order them but thats what I thought about the storage & freight or pisces..& I remember someone telling me they do occasionally smell bad & not much good. Unless they are fresh.
There is a local guy who breeds rats.. but would those pinkie rats be too large for 8 month old stimson's?