[trreherd]

When most people are setting up a new tank with lr they just put it in the tank, run the filters and lights and wait a week or two intill there amonia and nitrite hits zero. Than they start stocking slowly. But add your bottom(sand) after your lr cures. When your adding lr to a tank i think you can just put the rock in a bucket with saltwater and wait till amonia andi nitrite hit zero, than you can put it in the display tank.

 

[trreherd]

you dont want to add the sand becuase alot of stuff is dieing and will dirty up your sand, also you want good circulation around the lr.