I was speechless and I didn't say anything,,, just paid for my bag of IO and walked out.
Sad thing is,, I think this guy knew exactly what he was doing,,, just wanted to make a newbie sale,,,, you know, like when you see some kid and his Mom walking out of Petsmart with a 20g tank, pink gravel, and a bag with 3 yellow tangs in it.
I usually drop at least a grand a year in that LFS,, so it was a bit of a false economy, as I'll never be going back.