I just want to give a big thank you to @JPN07: it has been -4 degrees Celcius in Canberra the last 2 mornings. He posted Sulawesi Cardinals 2 days ago from the West Coast. With his ingenious double-heat pack-sandwich insulation packaging, the shrimp were at least 24 degrees Celcius in the esky when I got them. I went to check on them just now and they are all happy and foraging a few hours after arrival. Thank you so much for the generous extra ?