I'm a little bit behind you. I have a 72 Bow too, but starting over from scratch. I have rinsed my (previous) live aggregate sand to get rid of the old ammonia (it smelled terrible) because I haven't used the tank in over a year or so.
I have high hopes for a good "cycle" this time. I've talked to my Saltwater contact at the pet store.
This time, I am taking it slower.... letting the tank cycle, instead of rushing it... and pushing the cycle time faster along.
I found a good source for live rock out of Florida Keys. they ship free and have nice reputation.
So keep posting Aj..... I'll do the same
Mike in Myrtle Beach