I offer the following advice.....DO NOT ASK THE LFS FOR ADVICE AT ALL EVER. Go into the store knowing what you want. You can ask where something is or when it might be available again, but do not ask about anything concerning your fish tank. Have a pocket guide to fish and inverts right in the car and if while you are in the store...see something you like...go get your book and see what they need.
Corals....if you can control yourself...ask a name, write it down and go do research. If you are looking for equipment, a new skimmer or something...call and ask them what they carry in the store...then go online and see that brand compared to others.
This site is a Heaven sent. The world wide web is at your fingertips for advice from folks on this site to help you. The ONLY reason they give advice is to help you. We are not after a sale, and if one person misguides you or give bad advice...10 others will jump in to straighten them out before thier advice kills your tank. Even if I got advice from a close friend with a PHD in Marine biology, I would run their thoughts here before I follow it.