the livest LR available.

[piusma]

You would want to know why you wanted the liveliest rock, to sustain the fish / reef tank you don't need the liveliest rock. In fact a lot of the hitch hikers might not be wanted. I.e. Crabs, bad snails / Stars.

And even if you did got the most diverse live form from your rocks, a lot of them will eventually die off because our tank just isn't perfect for them. I believe as long as the rocks has the good bacteria in them, they are good. And focus on getting the right shape and size for your aquascaping!

Steven