Yesterday I set up my first saltwater tank. I have about 10lbs of LR from a friend's system, 20lbs of dry coral rock, 3 mangrove propagules (also from a friends tank). About how long until my cycle will be far enough along to start adding some hardy fish?(damsels, salt mollies, etc) I heard from a friend that having LR from an established system will boost the cycle ahead and whatnot, but is this true? Thanks for reading.