Warning! Potential Problem with Kent Salt.

[untamed]

Its possible that Kent is trying to protect itself from being ripped off by clever aquarists who work in groups. One bad bucket...divided up among several hundred people one teaspoon each translates into a great big scam! By making people send in a substantial amount, it might reduce the scamming.

Not that I agree with their decision...I merely offer another explanation for what seems like an odd policy.