Actually part of the arguement for "dry" shipping is that the coral will use up any available oxygen in the water and foul it up as well (sloughing tissue/mucous etc.) Then it has to sit in its own crap for the rest of the time its being shipped, resulting in a really ticked off coral when it arrives. By shipping without water, yet in a moist environment, the coral simply acts as if its "low tide" and is prepared for this. Granted it can't spend forever in this environment, but it usually arrives in far better condition.
JMHO
Christy
