Hi there
In the near future im going to be sending aquatic livestock (corals) by post and im looking for clever (and cheap) ways of keeping it warm in the royal mail postal service for 18 hours or so.
The corals will be shipped in small, water filled plastic bags, and it is this water that will need to be kept warm (26 degrees c preferred).
Any ingenious ideas as to how to best package this up so that the temp doesnt drop too much?
Anything i can add to the package to keep it warm (but without having to purchase expensive heat packs). Cant be too hot obviously, as it would melt the bags!!
Regards
Mark