yea thats what I thought you were talking about. I don't know of any research that either supports or refutes their "preserved in their natural live state " claim. the sand may in fact help introduce the bacteria into your tank to speed up your cycle, I can't say either way.
However, a stable DSB
requires more than just bacteria. There are thousands of flaura and fauna that live in the sand, copopods, worms, you name it. part of the "cycle" in a DSB
are tiny critters clean up the bacteria, allowing new bacteria to replace it, keeping the cycle going.
There is no way these popds or worms can survive the "bagging" process. The only real way to get them are from either the ocean (not recommended) or from other established SW
tanks. There are online retailers that sell .... shoot.. i forget what they call them... basically a DSB
seeding pack... which is basically scoops of sand from an established DSB
In regards to pictures... start a thread in the DIY
fourm and document the entire process... from dry tank placement all the way to adding fish! It's a great way to get good help as we'll all be up to speed on what you've done so far, and it also makes for a good reference for other new-comers.