There was no berating meant to you at all, it was just a disagreement between another member and I. Trust me, disagreements happen quite often around here, it happens because we care about fish soo much (probably too much bordering on craziness)
but they are for the most part well meaning and over just as quickly as they started.
Also, again congrats on getting rid of ich. Its truly a pita parasite and almost the sole reason I haven't bought any new fish for a while. Heck, I just got rid of it myself (hopefully)
One last thing, most of us find this out the hard way but 95% of LFS are there to make money. I've shot myself in the foot multiple times because I blindly listened to a LFS' advice that I thought I could trust. I adopted the habit of going into shops and asking some questions that I for sure know the answer to. It will give you a good idea of what their intentions are as well as how experienced they are. With fish shops that have been in business for soo long some of them tend to have outdated information which is the case for my saltwater lfs.