Originally Posted by Grizz
My advice Find another fish store. Bulk reef supply has one of the better RO
units around. If you use tap water you will get get algae phosphates and who knows what else. Cycling you can use a shrimp or pure ammonia to dose and start the cycle.
Here's a series of articles that will help you out a lot
I second that. A person that instructs you to kill fish in order to dive into a hobby that promotes learning to keep things alive and saving reefs is just whacky!
That store is about the bottom line.
I also concur with the R.O.D.I. unit. There is no way that person can tell you what exactly is in your water.