Ned,
Just wanted to share my success with Bio-Spira. I bought 15 cichlids from your store about a week ago to stock my 30 gallon. I used bio-spira for the tank and it worked wonders. Throughout the whole time the fish have been thriving and ammonia has been at 0 the entire time. No cycling, no new tank syndrome.
Bio-Spira would definitely be an EXCELLENT product to stock at the store.